PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 10:25 AM ET

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MS
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Mark W Steffen

Named as an officer, director or promoter on SEC Form D filings · NY · Mar 23, 2009 → Mar 13, 2013

1deal (issuers)
$28.8Mreported sold
33investors
8Form D filings
2009–2013years on file
Follow this personLook further ↓PDF

Data last updated Oct 23, 2026, 5:45 PM ET · Courts (RECAP) last checked: Oct 24, 2026, 2:17 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

Mark W Steffen is listed as an executive officer and director on 8 SEC Form D filings by 1 issuer between Mar 2009 and Mar 2013: Belle Haven Agressive Muni LP (Rye Brook, NY — pooled investment fund — 2009–2013; $28.8M reported sold to 33 investors).

What this means One deal on file with the SEC. A Form D is the notice a company files after it starts selling a private investment — it is a notice, not an approval.

Listed alongside Joseph Matthew Dalton (8 shared filings).

What this means These are the other officers, directors or promoters the companies named on the same forms — the team around Mark. Each name links to their own page.

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AK, AL, AR, AZ, CA, CO, CT, DC, DE, FINRA, FL, GA, HI, ID, IL, KS, KY, LA, MA, MD, ME, MI, MO, MS, MT, NASAA, NC, ND, NH, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, WA, WI, WV, WY) — 1 court case matching the name, 10 bankruptcy cases matching the name listed in Key records below.

What this means 11 records came back. Each one is listed below with a link to the original document and a line saying why it matched. A name match is not proof it is the same person or company — read the why line and the document. Being sued or named in a release is an accusation, not a finding.

We compared 8 public filings for Mark W Steffen and found 6 differences, 4 worth asking the sponsor about: Amount sold went down between filings; Investor count went down between filings; and more below.

What this means These are differences between the sponsor's own SEC filings — both values, dates and sources are listed in Key records, section 4. Most have ordinary explanations; ask the sponsor.

What the community is saying

Community search for Mark W Steffen has not run yet — it is joining a line of 53,866 names; searches run around the clock at the hosts' allowed rate. Searched so far: 641 names.

Community comments are quoted as written by their authors. Sources searched: Bing (site:reddit.com / site:biggerpockets.com) and Reddit's own search, plus DuckDuckGo/Brave/BiggerPockets search when they are answering.

Key records

Five things investors ask first. Items still in human review are counted, not shown.

1. Lawsuits

1 case: 1 closed (disposition not in docket feed)

United States v. STEFFEN, MARK A. closed
District Court, W.D. Wisconsin · No. 3:07-cr-00109 · Filed Jun 28, 2007 · Closed Feb 4, 2008
Role of STEFFEN, MARK A.: Defendant · Outcome: Terminated 2008-02-04 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in WI (not a filing state); middle initial differs; criminal docket
What was searched

Sources searched: CourtListener bulk data (RECAP dockets as of 2026-09-30; recall-first rule 10-24) — federal district + bankruptcy courts State courts: not covered (one-tap state court links under Look further). PACER: not searched. · Last checked Oct 24, 2026, 2:17 AM ET.

Court records show docket facts only; we never restate allegations as facts. Outcome wording comes from the docket feed; where it does not state a disposition we say so.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

2. Regulatory actions

None found in sources searched — SEC enforcement releases (index scan as of Oct 24, 2026, 2:50 AM ET) · state securities regulators: 48 regulators (FINRA, NASAA, 37 states) — crawled Oct 24, 2026, 8:48 AM ET

What was searched

SEC enforcement searched: SEC litigation releases and administrative proceedings — respondent names in the sec.gov index titles (30,205 releases, 1995-09-19 to 2026-10-23); release text is read only to confirm a candidate. Names that appear only in the body of a release are not found. — Searched SEC litigation releases and administrative proceedings (1995→ / 2007→) (30,205 records as of Oct 24, 2026, 2:50 AM ET) — nothing matched Mark W Steffen..

State securities regulators: Securities regulators searched (64,910 actions): FINRA (38,350 actions, 1995–2026), NASAA (31 actions, 2000–2026; listing starts 1997), AK Division of Banking and Securities (273 actions, 1971–2025), AL Securities Commission (880 actions, 2001–2026), AR Securities Department (1,305 actions, 1998–2026), AZ Corporation Commission Securities Division (411 actions, 2017–2026), CA DFPI (25 actions, 2007–2024; listing starts 2002 — 16 of 12,159 DFPI respondent pages read so far; sponsor-name matches are read first), CO Division of Securities (731 actions, 2001–2026; older years from the Internet Archive (snapshot of 2026-05-02)), CT Department of Banking Securities Division (940 actions, 2006–2026; older years from the Internet Archive (snapshot of 2026-04-22)), DC DISB Securities Bureau (25 actions, 2012–2026), DE DOJ Investor Protection Unit (257 actions, 1987–2026), FL Office of Financial Regulation (49 actions, 2018–2026), GA Secretary of State Securities Division (65 actions, 2015–2026; listing starts 2012), HI DCCA Securities Enforcement Branch (26 actions, 2012–2026), ID Department of Finance Securities Bureau (663 actions, 1994–2026), IL Secretary of State Securities Department (4,122 actions, 2003–2023), KS Insurance Department Securities Division (58 actions), KY Department of Financial Institutions (342 actions, 2005–2026), LA Office of Financial Institutions Securities Division (13 actions, 2010–2025; listing starts 2008), MA Secretary of the Commonwealth Securities Division (125 actions, 2012–2025; live site blocks automated access — loaded from the Internet Archive snapshot of 2026-02-04), MD Attorney General Securities Division (1,054 actions, 2004–2026), ME Office of Securities (539 actions, 2000–2026), MI LARA Corporations, Securities & Commercial Licensing Bureau (201 actions), MO Secretary of State Securities Division (919 actions, 1998–2026), MS Secretary of State Securities Division (209 actions, 1995–2026), MT Commissioner of Securities and Insurance (597 actions, 2000–2026), NC Secretary of State Securities Division (265 actions, 2004–2024), ND Securities Department (711 actions, 1990–2026; the regulator no longer publishes this list live — loaded from the Internet Archive snapshot of 2026-01-06), NH Bureau of Securities Regulation (402 actions, 2002–2026), NM Regulation and Licensing Department Securities Division (90 actions, 2010–2025), NV Secretary of State Securities Division (118 actions, 2018–2026), NY Attorney General Investor Protection Bureau (44 actions, 2012–2026), OH Division of Securities (327 actions, 1993–2006), OK Department of Securities (2,531 actions, 1998–2026), OR Division of Financial Regulation (589 actions, 1988–2026), PA Department of Banking and Securities (1,448 actions, 2008–2024; the regulator no longer publishes this list live — loaded from the Internet Archive snapshot of 2024-08-09), RI DBR Securities Division (98 actions, 2005–2025), SC Attorney General Securities Division (540 actions, 2006–2026), SD Division of Insurance – Securities Regulation (106 actions, 2017–2026), TN Department of Commerce and Insurance Securities Division (405 actions, 1992–2026), TX State Securities Board (936 actions, 1999–2026), UT Division of Securities (772 actions, 2000–2026; older years from the Internet Archive (snapshot of 2010-05-27)), VT DFR Securities Division (137 actions, 2010–2026), WA DFI (2,039 actions, 2001–2026), WI DFI Division of Securities (1,072 actions, 1998–2026), WV Securities Commission (State Auditor) (64 actions), WY Secretary of State Compliance Division (6 actions, 2016–2024) — last crawled Oct 24, 2026, 8:48 AM ET. No machine-readable public listing today for IA, IN, MN, NE, NJ, VA (see docs/state-regulators.md).

3. Bankruptcies

10 cases: 10 closed (disposition not in docket feed)

Mark W. Steffen closed
United States Bankruptcy Court, S.D. Iowa · No. 12-03261 · Filed Oct 18, 2012 · Closed Jan 29, 2013
Role of Mark W. Steffen: Debtor · Outcome: Case closed 2013-01-29 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in IA (not a filing state)
Mark D Steffen closed
United States Bankruptcy Court, D. Colorado · No. 09-15075 · Filed Mar 26, 2009 · Closed Aug 13, 2009
Role of Mark D Steffen: Debtor · Outcome: Case closed 2009-08-13 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in CO (not a filing state); middle initial differs
Mark W. Steffen and Charlotte J. Steffen closed
United States Bankruptcy Court, E.D. Missouri · No. 09-42654 · Filed Mar 26, 2009 · Closed Jul 8, 2014
Role of Mark W. Steffen and Charlotte J. Steffen: Debtor · Outcome: Case closed 2014-07-08 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in MO (not a filing state)
Mark D Steffen closed
United States Bankruptcy Court, N.D. Illinois · No. 05-16510 · Filed Apr 27, 2005 · Closed Aug 31, 2005
Role of Mark D Steffen: Debtor · Outcome: Case closed 2005-08-31 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in IL (not a filing state); middle initial differs
Mark Steffen and Tricia Steffen closed
United States Bankruptcy Court, S.D. Ohio · No. 2:05-bk-51006 · Filed Jan 25, 2005 · Closed May 20, 2005
Role of Mark Steffen and Tricia Steffen: Debtor · Outcome: Case closed 2005-05-20 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in OH (not a filing state); middle initial differs
Mark A. Steffen and Patricia R. Steffen closed
United States Bankruptcy Court, E.D. Pennsylvania · No. 04-18027 · Filed Jun 9, 2004 · Closed Oct 8, 2004
Role of Mark A. Steffen and Patricia R. Steffen: Debtor · Outcome: Case closed 2004-10-08 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in PA (not a filing state); middle initial differs
Mark F. Steffen and Cindy L. Steffen closed
United States Bankruptcy Court, E.D. Wisconsin · No. 02-32360 · Filed Sep 25, 2002 · Closed Aug 9, 2006
Role of Mark F. Steffen and Cindy L. Steffen: Debtor · Outcome: Case closed 2006-08-09 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in WI (not a filing state); middle initial differs
Mark Steffen and Amy Steffen closed
United States Bankruptcy Court, D. Nebraska · No. 98-81285 · Filed May 14, 1998 · Closed Sep 8, 1998
Role of Mark Steffen and Amy Steffen: Debtor · Outcome: Case closed 1998-09-08 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); middle initial differs
Mark G. Steffen closed
United States Bankruptcy Court, E.D. Wisconsin · No. 93-21236 · Filed Mar 9, 1993 · Closed Jun 16, 1993
Role of Mark G. Steffen: Debtor · Outcome: Case closed 1993-06-16 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); court in WI (not a filing state); middle initial differs
Mark Steffen and Cindy Steffen closed
United States Bankruptcy Court, D. Nebraska · No. 91-82111 · Filed Oct 16, 1991 · Closed Feb 18, 1992
Role of Mark Steffen and Cindy Steffen: Debtor · Outcome: Case closed 1992-02-18 (disposition not included in the bulk docket feed — see docket) Docket on CourtListener ↗
same full name (a name found in 18 federal dockets); middle initial differs
What was searched

Sources searched: Federal bankruptcy courts via CourtListener / RECAP archive (federal district courts, federal bankruptcy courts). State courts: not covered (one-tap state court links under Look further). PACER: not searched (RECAP only). · Last checked Oct 24, 2026, 2:17 AM ET.

Court records show docket facts only; we never restate allegations as facts. Outcome wording comes from the docket feed; where it does not state a disposition we say so.

State courts: not covered (one-tap state court links under Look further). No state offers a lawful automated statewide source PartnerFacts can use today. Texas (re:SearchTX) terms prohibit storing results in a database open to third parties; New York (WebCivil) and Massachusetts (MassCourts) require a browser check that blocks scripted queries; California has no statewide index (58 county portals; Rule of Court 2.503 grants name-based access case by case); Florida, Utah and Illinois offer paid or partial access whose terms for automated use are unverified. Washington (dw.courts.wa.gov; bulk index reports under a JISC data-dissemination agreement), Delaware (CourtConnect; Court of Chancery not included) and Arizona (apps.azcourts.gov/publicaccess, which has an official channel to request high-volume access) are the candidates; PartnerFacts will request written permission before any automated search. Federal courts are searched through CourtListener / RECAP.

4. Differences between public sources

Comparisons cover issuers and sponsor groups — see the issuer pages under Deals

6 differences found between the filings for Mark W Steffen — 4 worth asking about (compared 8 filings on Oct 24, 2026)

Worth asking · Mar 27, 2009 – Mar 16, 2010

Amount sold went down between filings — Belle Haven Agressive Muni LP

The Mar 27, 2009 filing says $5,495,553 sold; the Mar 16, 2010 Form D/A says $5,245,553 sold — $250,000 less.

What this means Amounts sold normally only go up as a raise continues. A drop can mean investors were refunded, a figure was corrected, or an earlier number was wrong. Ask the sponsor which it was.

Form D/A (earlier) · Mar 27, 2009 ↗Form D/A (later) · Mar 16, 2010 ↗Belle Haven Agressive Muni LP — PartnerFacts page ↗
Sources
Worth asking · Mar 27, 2009 – Mar 16, 2010

Investor count went down between filings — Belle Haven Agressive Muni LP

The Mar 27, 2009 filing reports 19 investors; the Mar 16, 2010 Form D/A reports 6 investors.

What this means Investor counts normally only grow. A smaller number can mean investors left or were refunded, or a count was corrected. Ask the sponsor what happened.

Form D/A (earlier) · Mar 27, 2009 ↗Form D/A (later) · Mar 16, 2010 ↗Belle Haven Agressive Muni LP — PartnerFacts page ↗
Sources
Worth asking · Feb 1, 2006 – Mar 6, 2013

Form D filed 2,590 days after the first sale — Belle Haven Agressive Muni LP

The filing says the first sale was Feb 1, 2006. The Form D was filed Mar 6, 2013 — 2,590 days later. The rule: a Form D is generally due within 15 days after the first sale, so this one is 2,575 days past that.

What this means The notice went in months after money was taken in. Late notices are common and carry no penalty by themselves, but it is fair to ask the sponsor why the paperwork lagged.

Form D · Mar 6, 2013 ↗Belle Haven Agressive Muni LP — PartnerFacts page ↗
Sources
Note · Feb 1, 2006 – Mar 9, 2012

No amendment in the last 12 months on an offering that may still be open — Belle Haven Agressive Muni LP (latest filing Mar 9, 2012)

The latest filing for this offering is dated Mar 9, 2012 (first sale Feb 1, 2006). It reports $24,224,142 sold of an indefinite amount offered. No later amendment is in our index as of Oct 24, 2026.

What this means SEC rules expect a yearly amendment while an offering is still going. The raise may simply have ended — a Form D does not say when it closed. Ask the sponsor whether the offering closed, when, and at what amount.

Form D/A · Mar 9, 2012 ↗Belle Haven Agressive Muni LP — PartnerFacts page ↗
Sources
Worth asking · Mar 13, 2013 – Mar 6, 2014

Mark W Steffen is no longer listed on the Mar 6, 2014 amendment — Belle Haven Agressive Muni LP

Mark W Steffen appears on the Mar 13, 2013 Form D/A (executive officer, director) but not on the Mar 6, 2014 Form D/A for the same offering.

What this means People leave, and the issuer must list only current officers, directors and promoters. It is still worth asking why this person left and who replaced them.

Form D/A · Mar 13, 2013 ↗Form D/A · Mar 6, 2014 ↗Mark W Steffen — PartnerFacts page ↗Belle Haven Agressive Muni LP — PartnerFacts page ↗
Sources
Note · Mar 6, 2014 – Jul 20, 2018

Address moved from White Plains, NY to Rye Brook, NY — Belle Haven Agressive Muni LP

The people listed on the Mar 6, 2014 filing give White Plains, NY; on the Jul 20, 2018 filing they give Rye Brook, NY. The address now on file (800 Westchester Avenue, Suite N607, Rye Brook, NY) is a registered-agent or shared-office address used by 16 issuers.

What this means A registered agent's address is a mailbox, not where the team works. Ask where the business actually operates.

Form D/A · Mar 6, 2014 ↗Form D/A · Jul 20, 2018 ↗Belle Haven Agressive Muni LP — PartnerFacts page ↗
Sources
What is compared

What is compared: every Form D and D/A we hold for this subject, side by side — filing dates vs. first-sale dates (the 15-day rule), amendment timing on open offerings (the yearly-amendment expectation), amounts sold, investor counts, offering amounts and minimums across amendments, industry and size bands, addresses, how each person's name and role is written, paid sellers' CRD numbers, and (for groups) where the member companies were formed and sit. Everything is as filed by the issuer; the SEC does not check it. Differences are common and usually have ordinary explanations — we show both values, the dates, and the source so you can ask. As of Oct 24, 2026.

5. Money to insiders

1 of 2 offerings reports sales commissions totalling $1,145; 0 report finder's fees; 0 report proceeds to related persons. (includes amounts the issuer reported as estimates)

Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Mar 13, 2013 D/A
Belle Haven Agressive Muni LP
File 021-192779
$1,145$0$0 (est.)FCE Group Inc. BrokerCheck CRD 14428 ↗EDGAR ↗
Mar 9, 2012 D/A
Belle Haven Agressive Muni LP
File 021-87467
$0$0$0None listed on this filingEDGAR ↗
How this is counted

Counts come from Form D Items 12–15 on the filings in our index (latest filing per offering; one offering = one SEC file number; an amendment updates its offering rather than adding one). "To insiders" = gross proceeds used for payments to executive officers, directors or promoters. "—" = not reported on that filing. Amounts marked (est.) were reported as estimates. "Paid to sell it" = sales compensation recipients named on that filing (Item 12), each linked to FINRA BrokerCheck when a CRD number is reported.

Counted across every filing this person is listed on (latest filing per offering, per issuer).

Deals 1

Every issuer that named Mark W Steffen on a Form D, newest first. A Form D is the notice a company files after it starts selling a private investment.

BH
Pooled Investment Fund

Belle Haven Agressive Muni LP

Rye Brook, NY · Mar 23, 2009 → Mar 13, 2013 · 8 filings
  • Mar 13, 2013 · D/A · $24,374,142 sold of Indefinite · 24 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗
  • Mar 6, 2013 · D · $24,374,142 sold of Indefinite · 24 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗
  • Mar 9, 2012 · D/A · $24,224,142 sold of Indefinite · 23 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗
  • Mar 11, 2011 · D/A · $5,245,553 sold of Indefinite · 6 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗
  • Mar 19, 2010 · D/A · $5,245,553 sold of Indefinite · 6 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗
  • Mar 16, 2010 · D/A · $5,245,553 sold of Indefinite · 6 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗
  • Mar 27, 2009 · D/A · $5,495,553 sold of Indefinite · 19 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗
  • Mar 23, 2009 · D/A · $5,495,553 sold of Indefinite · 19 investors · min. $100,000 · role: Executive Officer, Director (Mark W. Steffen is the Executive Vice President of Belle Haven Capital Management Inc., a Connecticut corporation, which is the General Partner of Belle Haven Aggressive Muni, L.P.) EDGAR ↗

Raised $28.8M from 33 investors as of the latest filing. Mark is listed as executive officer, director on 8 filings for this deal.

Latest filing on EDGAR ↗
Sources

Every row is a Form D or D/A on which the issuer listed this name as a related person. Amount sold and investors are the maximum reported on any filing for this issuer.

People around Mark 1

Officers, directors, promoters and management entities named on the same filings, as of Oct 23, 2026, 5:45 PM ET.

JD
No photo found yet (own website and image search run after this page is viewed)
Person

Joseph Matthew Dalton

Executive Officer, Director · 8 shared filings (1 issuer)

Listed on the same filings as Mark W Steffen. Their page shows their other deals.

The team behind the deals

Same business address

15 other issuers file from the same address

A shared address can mean the same team, a shared office building or a registered agent. It is a lead, not a conclusion.

Registrations and other filings

Business registration (state registry / Secretary of State)

Individuals are not matched to business registrations — registries list companies, and a name alone is not enough to tie a person to one. Officers and managers appear by name inside each matched company's record on the issuer pages. Registries searched: AL (Alabama Secretary of State — Business Entity Records (arc-sos.state.al.us), searched by issuer name, data as of Oct 24, 2026); CO (Colorado Secretary of State — Business Entities in Colorado (data.colorado.gov), data as of Oct 23, 2026); CT (Connecticut Secretary of the State — Business Registry (data.ct.gov), data as of Oct 24, 2026); FL (Florida Department of State, Division of Corporations — quarterly corporate data file (Sunbiz), data as of Oct 7, 2026); NY (New York Department of State — Corporations and Other Entities (data.ny.gov: All Filings + Active Corporations), data as of Oct 20, 2026); OR (Oregon Secretary of State — Active Businesses, All (data.oregon.gov), data as of Oct 20, 2026); PA (Pennsylvania Department of State — Registered Businesses, Current (data.pa.gov), data as of Oct 6, 2026); TX (Texas Comptroller — Active Franchise Taxpayers incl. Secretary of State file data (data.texas.gov), data as of Oct 24, 2026). Registries of other states have not been searched: many publish no bulk file and require a CAPTCHA or bot challenge on their search page, which we do not bypass (Delaware, for example, offers no public bulk file).

Adviser registration (Form ADV)

None of the 1 issuer this person is listed on appears in Form ADV (searched 24,962 advisers as of Oct 2, 2026). A person is never an adviser firm; Form ADV is checked for the issuers and the management companies they are listed with.

Other offering types (Regulation A and Regulation Crowdfunding)

Searched SEC Regulation A Data Sets (Forms 1-A, 1-K, 1-Z; 2015 Q2 → 2026 Q3); SEC Crowdfunding Offerings Data Sets (Form C family; 2016 Q2 → 2026 Q3); EDGAR form index for 2026 Q3 → 2026 Q4 (51,358 records as of Oct 23, 2026, 8:41 PM ET) — nothing matched this name.

Property records none — individuals are not matched

Property records are matched to companies only, never to individuals, so none are matched to Mark W Steffen by design. Searched property records in Hillsborough County FL (Clerk recorded-document index Oct 14, 2026 to Oct 15, 2026 + FL DOR 2026 ownership roll), Miami-Dade County FL (FL DOR 2026 ownership roll), Harris County TX (HCAD 2026 ownership roll), Dallas County TX (DCAD 2026 ownership roll), New York City ACRIS documents and PLUTO ownership rows already retrieved for other issuers, Cook County IL sale and ownership rows already retrieved for other issuers (814,874 records as of Oct 23, 2026, 8:59 PM ET) for the 1 issuer this person is listed on — nothing matched.

Public profiles and social

Websites and social links of the issuers Mark W Steffen is listed on: none on file. No website or social profile named in Belle Haven Agressive Muni LP's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #2,360 of 374,652 in line (1,386 issuers searched so far). One-tap searches: Look further ↓

Look further

One-tap searches on sites we do not index ourselves, with the name pre-filled (Rye Brook, NY). Each opens in a new tab; what you find there is not verified by PartnerFacts.

Social and web

LinkedIn people search ↗Instagram ↗X (Twitter) ↗Facebook ↗YouTube ↗Google ↗Google Images ↗Google News ↗Meta Ad Library ↗

Courts

CourtListener / RECAP (federal) ↗PACER case locator (federal, login) ↗New York WebCivil Supreme ↗

Securities regulators

SEC EDGAR full-text search ↗SEC action look-up ↗FINRA BrokerCheck ↗SEC IAPD adviser search ↗

Business registries

New York Secretary of State business search ↗OpenCorporates ↗

Change history

No corrections have been requested for this page.

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