PartnerFacts
Data last updated: Oct 23, 2026, 5:45 PM ETLatest filing: Oct 22, 2026Now: Oct 24, 2026, 5:20 AM ET

Sponsor Check › Sponsor group

GL

Group linked by James A Diamond

One sponsor team, 9 deal companies · Mt. Kisco, NY

Grouped because: 2 shared people, same business address (9 issuers) (automatic match from the filings) · not the same sponsor?

9deal companies
$76.8Mreported sold
307investors
9Form D filings
2009–2026active
1new, last 12 mo
Follow this sponsor groupLook further ↓

Data last updated Oct 23, 2026, 5:45 PM ET · Latest filing in this group Sep 8, 2026 · Courts (RECAP) last checked: Oct 24, 2026, 2:16 AM ET · SEC enforcement last checked: covered by the index scan as of Oct 24, 2026, 2:50 AM ET

The short version

Group linked by James A Diamond is a sponsor group of 9 issuers that PartnerFacts links to one sponsor (shared people, same business address; automatic match from the filings), filing 9 Form D filings between Apr 2009 and Sep 2026.

What this means One team, 9 deal companies, about 17 years of track record in SEC filings. We link the companies because the same people or address appear on their forms — tap "Request a correction" if that is wrong.

Combined reported sold: $76.8M to 307 investors (latest filing per issuer). Industries as reported: Commercial (7), "Other" (2). Issuers are based in NY (9).

What this means $76.8M raised across the group, about $250K per investor. Amounts come from each company's latest Form D; they are what the sponsor reported, not audited figures.

Principal people: James A Diamond (9 issuers, executive officer, director, and promoter), William E Diamond (8 issuers, executive officer, director, and promoter), Adam Wachter (1 issuer, director), Kent Bain (1 issuer, director), Mark Eickelbeck (1 issuer, director) and 5 more.

What this means The person on the most companies is usually the one running the show; their page lists every deal.

Activity: 1 new offering in the last 12 months; latest filing Sep 8, 2026.

What this means still raising money this year.

Public records searched: federal courts (CourtListener / RECAP), SEC enforcement releases, state securities regulators (AZ, CA, DE, TX, WA), property records (NYC, FL, IL and TX counties) — 2 property records listed in Key records below.

What this means 2 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 9 public filings for Group linked by James A Diamond and found 3 differences, 1 worth asking the sponsor about: 7 Form Ds were filed more than 15 days after the first sale; 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 Group linked by James A Diamond has not run yet — it is joining a line of 13,550 names; searches run around the clock at the hosts' allowed rate. Searched so far: 28 names.

Community comments are quoted as written by their authors. Sources searched: BiggerPockets forums (via DuckDuckGo, Brave, Bing and BiggerPockets search) and Reddit (search feed + public archive).

Key records

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

1. Lawsuits

None found in sources searched — federal courts (CourtListener / RECAP), checked Oct 24, 2026

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, 2:16 AM ET.

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: AZ, CA, DE, TX, WA (crawled Oct 23, 2026)

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 Group linked by James A Diamond..

State securities regulators searched: AZ (Corporation Commission Securities Division), CA (DFPI — 16 of 12,159 DFPI respondent pages read so far; sponsor-name matches are read first), DE (DOJ Investor Protection Unit), TX (State Securities Board), WA (DFI) — last crawled Oct 23, 2026, 9:57 PM ET. Other states are not covered.

3. Bankruptcies

None found in sources searched — federal bankruptcy courts (CourtListener / RECAP), checked Oct 24, 2026

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, 2:16 AM ET.

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

No comparisons published

What is compared

No public statement by this sponsor group has been collected yet, so there is nothing to compare. Sources compared: the sponsor's own website (known from the issuer's own filings — Form C issuer website, EDGAR company profile — an approved profile claim or Form ADV Item 1.I of its matched adviser) · SEC Form D · SEC Form ADV (IAPD) · Internet Archive · No website is on file for this sponsor group yet.

3 differences found between the filings for Group linked by James A Diamond — 1 worth asking about (compared 9 filings on Oct 24, 2026)

Worth asking · Mar 18, 2009 – Sep 8, 2026

7 Form Ds were filed more than 15 days after the first sale

Form D filed 196 days after the first sale — DP 151, LLC · Form D filed 87 days after the first sale — DP 137,LLC · Form D filed 19 days after the first sale — DP 172, LLC · Form D filed 39 days after the first sale — DP 160, LLC · Form D filed 29 days after the first sale — DP 156, LLC · and 2 more

What this means Late notices are common and carry no penalty by themselves. A pattern of late paperwork is worth asking the sponsor about.

Form D · May 30, 2024 ↗DP 151, LLC — PartnerFacts page ↗Form D · Mar 24, 2022 ↗DP 137,LLC — PartnerFacts page ↗
Sources
Note · Apr 9, 2009 – May 17, 2019

James A Diamond is written 2 different ways on the filings

listed as "James Arthur Diamond" on the Apr 9, 2009 filing, and "James A Diamond" on 8 filings (from May 17, 2019).

What this means Same person, written differently — a middle name or suffix left off, or spelled another way. It is normal, but check that the full legal name matches your subscription documents.

Form D · Apr 9, 2009 ↗Form D · May 17, 2019 ↗James A Diamond — PartnerFacts page ↗
Sources
Note · Apr 9, 2009 – Sep 8, 2026

Member companies were formed in 3 different states

Delaware (7), Ny (1), North Carolina (1) — out of 9 member issuers. The odd ones out: Grand Prix New York Racing, LLC (Ny); DP 156, LLC (North Carolina).

What this means Sponsors often form each deal company in Delaware or Wyoming no matter where the property is. A mix is common; it just tells you which state's rules each company lives under.

Group linked by James A Diamond — sponsor group page ↗Grand Prix New York Racing, LLC — PartnerFacts page ↗DP 156, LLC — 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

0 of 9 offerings report sales commissions; 0 report finder's fees; 2 report proceeds to related persons totalling $348,525. (includes amounts the issuer reported as estimates)

Offering (latest filing)Sales commissionsFinder's feesTo insidersPaid to sell itSource
Sep 8, 2026 D
DP 172, LLC
File 021-596602
$0$0$0None listed on this filingEDGAR ↗
Jan 14, 2025 D
DP 160, LLC
File 021-535148
$0$0$0None listed on this filingEDGAR ↗
May 30, 2024 D
DP 156, LLC
File 021-514629
$0$0$0None listed on this filingEDGAR ↗
May 30, 2024 D
DP 151, LLC
File 021-514632
$0$0$0None listed on this filingEDGAR ↗
Dec 8, 2022 D
DP 144, LLC
File 021-466909
$0$0$0None listed on this filingEDGAR ↗
Mar 24, 2022 D
DP 137,LLC
File 021-438813
$0$0$0None listed on this filingEDGAR ↗
Jan 15, 2020 D
DP 125, LLC
File 021-358123
$0$0$0None listed on this filingEDGAR ↗
May 17, 2019 D
DP 114, LLC
File 021-339832
$0$0$278,525
Issuer's share of real property acquisition fee payable to Issuer's Managing Member which is wholly owned by the Related Parties.
None listed on this filingEDGAR ↗
Apr 9, 2009 D
Grand Prix New York Racing, LLC
File 021-130065
$0$0$70,000 (est.)None 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 all 9 issuers in this group — every filing in our index, latest filing per offering (SEC file number).

Property records 0 documents · 2 ownership records · last checked Oct 23, 2026, 8:59 PM ET · NYC and Cook County lookup still to run

0 recorded documents and 2 ownership records matched to Group linked by James A Diamond in the sources searched.

Owner of record Miami-Dade County FL
Parcel 0821290220260 · Opa-locka, FL · Roll 2026
Owner as listed: DP 125 LLC
Matched on: exact company name; recorded in FL, not the issuer's state. Parcel page (Miami-Dade Property Appraiser) ↗ · Dataset file we read (FL DOR NAL zip, 59 MB) ↗ · Florida DOR NAL roll (Dade 23) · Retrieved Oct 23, 2026, 8:57 PM ET
Owner of record Miami-Dade County FL
Parcel 0821290220270 · Opa-locka, FL · Roll 2026
Owner as listed: DP 125 LLC
Matched on: exact company name; recorded in FL, not the issuer's state. Parcel page (Miami-Dade Property Appraiser) ↗ · Dataset file we read (FL DOR NAL zip, 59 MB) ↗ · Florida DOR NAL roll (Dade 23) · Retrieved Oct 23, 2026, 8:57 PM ET

Property records coverage: New York City (ACRIS recorded documents and PLUTO ownership, looked up per issuer when its page is viewed; re-checked when the page is viewed again more than 30 days after the last check); Hillsborough County FL (recorded documents from Oct 14, 2026 forward; ownership from FL DOR roll 2026); Cook County IL (assessor ownership and deed/sale records, looked up per issuer when its page is viewed); Harris County TX and Dallas County TX (assessor ownership rolls only, 2026 roll; no deed, mortgage or sale records); Miami-Dade County FL (ownership from FL DOR roll only; Clerk recorded documents not covered). Recorder indexes for TX, AZ, IL and WA counties, mortgages and liens outside NYC and FL, lis pendens and foreclosure notices everywhere, Miami-Dade County FL recorded documents, Maricopa County AZ, King County WA, Salt Lake County UT, and all other counties are not covered — not searched. Last refresh by source: Hillsborough County FL Clerk daily index Oct 23, 2026, 8:59 PM ET; Dallas Central Appraisal District ACCOUNT_INFO.CSV Oct 23, 2026, 8:58 PM ET; Harris County Appraisal District real_acct.txt Oct 23, 2026, 8:58 PM ET; Florida DOR NAL roll (Dade 23) Oct 23, 2026, 8:58 PM ET; Florida DOR NAL roll (Hillsborough 39) Oct 23, 2026, 8:54 PM ET. NYC and Cook County are looked up per issuer when its page is viewed; the most recent such lookup on this site finished Oct 24, 2026, 3:30 AM ET. Sources searched: Hillsborough County FL Clerk of Court Official Records daily index (publicrec.hillsclerk.com D/P/M files), 2 daily files (Oct 14, 2026 to Oct 15, 2026) — loaded Oct 23, 2026, 8:59 PM ET · Florida DOR NAL roll (Hillsborough 39) roll year 2026 — loaded Oct 23, 2026, 8:54 PM ET · Florida DOR NAL roll (Dade 23) roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET · Harris County Appraisal District real_acct.txt roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET · Dallas Central Appraisal District ACCOUNT_INFO.CSV roll year 2026 — loaded Oct 23, 2026, 8:58 PM ET. Still to be looked up for this group: NYC ACRIS via NYC Open Data (Real Property Parties 636b-3b5g, Master bnx9-e6tj, Legals 8h5j-fqxa, Document Control Codes 7isb-wh4c) · NYC PLUTO ownership via NYC Open Data (64uk-42ks) · Cook County IL Assessor via Cook County Open Data (Parcel Sales wvhk-k5uv; Parcel Addresses 3723-97qp). Parties are named as the recorder's index names them (role suffixes as recorded); no address, account number or trust date is shown for an individual, and individual owners of record (home ownership) are not matched or shown. Items still in human review are not shown.

Issuers in this group

Why each issuer is here is stated in the "Linked by" column. Low-confidence links are never shown — they wait for human review.

SourceIssuerLinked byLocationIndustryFilingsSold (max)InvestorsMin. investment (latest filing)Active
EDGAR ↗GP Grand Prix New York Racing, LLCshared people, same business addressMT. KISCO, NYOther1$2,200,00038No minimum reported2009–2009
EDGAR ↗D1 DP 114, LLCshared people, same business addressMT. KISCO, NYCommercial1$10,660,000
offering $10,660,000 · similar: $1,815,000–$10,000,000
30
similar: 7–33
$53,300
similar: $20,000–$50,000
2019–2019
EDGAR ↗D1 DP 125, LLCshared people, same business addressMT. KISCO, NYCommercial1$2,620,200
offering $2,620,200 · similar: $1,815,000–$10,000,000
16
similar: 7–33
$26,202
similar: $20,000–$50,000
2020–2020
EDGAR ↗D1 DP 137,LLCshared people, same business addressMT. KISCO, NYCommercial1$8,421,000
offering $8,421,000 · similar: $1,815,000–$10,000,000
34
similar: 7–33
$84,210
similar: $20,000–$50,000
2022–2022
EDGAR ↗D1 DP 144, LLCshared people, same business addressMT. KISCO, NYCommercial1$14,270,000
offering $14,270,000 · similar: $1,815,000–$10,000,000
45
similar: 7–33
$71,350
similar: $20,000–$50,000
2022–2022
EDGAR ↗D1 DP 151, LLCshared people, same business addressMT KISCO, NYCommercial1$20,270,000
offering $20,270,000 · similar: $3,000,000–$20,000,000
63
similar: 4–26
$72,012
similar: $25,000–$100,000
2024–2024
EDGAR ↗D1 DP 156, LLCshared people, same business addressMT KISCO, NYOther1$4,430,000
offering $4,430,000 · similar: $500,000–$7,000,000
25
similar: 2–14
$66,450
similar: $5,000–$50,000
2024–2024
EDGAR ↗D1 DP 160, LLCshared people, same business addressMT KISCO, NYCommercial1$7,546,000
offering $7,546,000 · similar: $1,815,000–$10,000,000
30
similar: 7–33
$75,460
similar: $20,000–$50,000
2025–2025
EDGAR ↗D1 DP 172, LLCshared people, same business addressMT KISCO, NYCommercial1$6,407,850
offering $6,407,850 · similar: $3,000,000–$20,000,000
26
similar: 4–26
$64,078
similar: $25,000–$100,000
2026–2026

"Similar" = offerings in the same industry claiming the same exemption, filed in the last 5 years: Commercial / 506(b) (6,713 filings); Commercial / 506(c) (2,639 filings); Other / 506(b) (18,678 filings); ranges are the middle half (25th–75th percentile). Computed by PartnerFacts from SEC EDGAR Form D data as of Oct 23, 2026, 5:45 PM ET. Rows without a range: fewer than 30 comparable filings, or not a Rule 506 offering. No ranking or score.

Timeline of offerings

SourceFiledIssuerFormIndustryOfferedSold
EDGAR ↗Sep 8, 2026DP 172, LLCDCommercial$6,407,850$6,407,850
EDGAR ↗Jan 14, 2025DP 160, LLCDCommercial$7,546,000$7,546,000
EDGAR ↗May 30, 2024DP 151, LLCDCommercial$20,270,000$20,270,000
EDGAR ↗May 30, 2024DP 156, LLCDOther$4,430,000$4,430,000
EDGAR ↗Dec 8, 2022DP 144, LLCDCommercial$14,270,000$14,270,000
EDGAR ↗Mar 24, 2022DP 137,LLCDCommercial$8,421,000$8,421,000
EDGAR ↗Jan 15, 2020DP 125, LLCDCommercial$2,620,200$2,620,200
EDGAR ↗May 17, 2019DP 114, LLCDCommercial$10,660,000$10,660,000
EDGAR ↗Apr 9, 2009Grand Prix New York Racing, LLCDOther$2,200,000$2,200,000

Activity: 1 new offering in the last 12 months across all issuers in this group (new offering = a Form D that is not an amendment, D/A) · most recent filing Sep 8, 2026. Industry history, as reported on each offering's latest filing: Previous offerings: Other (2009), Commercial (2019–2022), Other (2024). Latest offering: Commercial (2024–2026; most recent Sep 8, 2026).

People across the group

NameRolesIssuers hereFirst → last listed
JD James A DiamondDirector, Executive Officer, Promoter9Apr 9, 2009 → Sep 8, 2026
WD William E DiamondExecutive Officer, Director, Promoter8May 17, 2019 → Sep 8, 2026
SA Sy AryehExecutive Officer, Director, Promoter1Apr 9, 2009 → Apr 9, 2009
NC Nestor D. CybriwskyDirector1Apr 9, 2009 → Apr 9, 2009
AW Adam WachterDirector1Apr 9, 2009 → Apr 9, 2009
MS Mark Kenneth SilversteinDirector1Apr 9, 2009 → Apr 9, 2009
KB Kent BainDirector1Apr 9, 2009 → Apr 9, 2009
NM Nathaniel E. MundyExecutive Officer1Apr 9, 2009 → Apr 9, 2009
YL Yury LyalkoExecutive Officer1Apr 9, 2009 → Apr 9, 2009
ME Mark EickelbeckDirector1Apr 9, 2009 → Apr 9, 2009

Adviser registration (Form ADV)

Searched SEC Form ADV bulk data (registered + exempt reporting advisers) (24,962 records as of Oct 2, 2026, 8:00 AM ET) — nothing matched Group linked by James A Diamond.

Meta advertising

No Meta Pixel ids or Facebook / Instagram page links on file for Group linked by James A Diamond as of Oct 24, 2026 — the sponsor website is read for them once it is on file (runs automatically). Meta Ad Library: not searched by PartnerFacts (no API access); a one-tap Ad Library search is under Look further.

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.

Public profiles and social

No website or social profile named in Group linked by James A Diamond's SEC filings (Form C, Reg A, Form ADV; checked Oct 24, 2026). Web search for this name: #99,164 of 374,652 in line (14 issuers searched so far). One-tap searches: Look further ↓

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Change history

No corrections have been requested for this page.

Request a correction

Free. Covers the grouping itself or any record shown here. Logged with status: received → under review → fixed / confirmed with source.

Sponsor response

Add a sourced explanation next to any fact. Reviewed before publishing.

Grouping is PartnerFacts' inference from public filings (shared related persons, management entities, business address). Everything else on this page is drawn from the filings themselves. Not the same sponsor? Request a correction.

Look further

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

Social and web

LinkedIn companies ↗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 ↗