INDEPENDENT VERDICT
Cornerstone Summit Fund, LLC is a newly formed Texas pooled investment vehicle with a relatively small but unusually concentrated initial capital base: its September 2026 Form D reports $500,000 sold to exactly one investor, a $50,000 minimum, an indefinite total offering and a July 31 first sale. The filing relies on Rule 506(c), meaning purchasers must be accredited investors and the issuer must take reasonable steps to verify that status. What makes this case more interesting than the headline amount is the sponsor footprint. The two executive officers, Usman Jamal Solaija and Umair Jamal Solaija, use 1517 FM 359 Road, Suite 400, Richmond, Texas—the same address independently used by Arrant Services and Arrant Construction. Usman publicly identifies himself as a general partner at Arrant Ventures and as a commercial-real-estate development principal, while Umair is publicly associated with the same Arrant operating ecosystem. That creates a credible sponsor-level bridge to an existing group of technology, construction and real-estate businesses, but the public record does not yet establish that Cornerstone Summit Fund is legally owned by Arrant Ventures or that its $500,000 has been committed to any specific Arrant real-estate project.
The SEC filing itself contains one unusually useful economic disclosure. Cornerstone Summit reports an estimated $10,000 of annual management fee payable to persons named in the filing, calculated on "currently contemplated called capital," and separately warns that additional transaction fees and expense reimbursements may apply under the governing documents. Relative to the $500,000 currently reported sold, the $10,000 estimate equals 2.0%. That does not prove the contractual management-fee rate is exactly 2%—the fee base may change as more capital is called and the operating agreement controls—but it provides far more fee visibility than many first-time Form D funds. Because the offering amount is indefinite, the current $500,000 is not a target or final fund size. It is simply the amount subscribed as of the filing. The fund also reports no broker-dealer, no placement agent, $0 sales commissions and $0 finder fees, indicating that the initial capital appears to have been raised without a disclosed third-party securities distributor.
The legal classification creates an important tension with the principals' public business background. Cornerstone Summit selects "Pooled Investment Fund" and specifically "Other Investment Fund"; it does not select Hedge Fund, Private Equity Fund, Venture Capital Fund, Commercial Real Estate or another real-estate category. Yet Usman Solaija's public professional profile says he serves as a general partner and development principal for commercial real-estate projects in Texas, focusing on industrial and mixed-use developments, capital-stack structuring, land basis and construction-risk management. He also identifies Arrant Ventures as a current investment role. Arrant Construction, operating from the exact same Richmond address as Cornerstone Summit, publicly markets itself as a commercial and industrial general contractor serving warehouse, hospitality, healthcare, multifamily, retail and other development sectors. These overlaps make real estate a meaningful diligence lead, but they are not sufficient to label Cornerstone Summit a real-estate fund when its own Form D deliberately classifies the vehicle as an "Other Investment Fund."
THE ADDRESS CONNECTS THE FUND TO A REAL OPERATING BUSINESS ECOSYSTEM
The strongest entity-penetration evidence is physical rather than branding-based. Cornerstone Summit's principal office is 1517 FM 359 Road, Suite 400, Richmond, Texas 77406. Arrant Services' official website gives the exact same address as its head office. Arrant Construction's official site also lists 1517 FM 359 Road, Suite 400 as its Texas head office, while LinkedIn identifies the company as a Richmond-based commercial construction contractor founded in 2020. Arrant Services describes a separate technology operation covering structured cabling, cybersecurity, networking, surveillance, audiovisual systems, software and other infrastructure work. Thus, the fund is not using an address with no visible operating context; it is using the established headquarters of businesses directly associated with the same Solaija principals.
The people match as well. Usman Solaija is publicly identified as principal and CEO of Arrant Services, COO/partner at Arrant Construction and GP at Arrant Ventures. His current profile specifically describes work as a commercial-real-estate general partner and development principal, including industrial, mixed-use, airport and hospitality initiatives and relationships with private equity, family offices and direct lenders. Umair Solaija is publicly identified as a co-founder of Arrant Services, while BBB records list Umair J. Solaija as the owner of Arrant Construction. These independent records make it reasonable to describe Cornerstone Summit as sponsor-linked to the broader Solaija/Arrant operating network. They do not, however, establish that Arrant Services or Arrant Construction owns the fund, acts as investment adviser, receives fees from it or guarantees its obligations.
THE FUND'S MOST IMPORTANT MISSING FACT IS ITS INVESTMENT MANDATE
The public filing verifies who operates Cornerstone Summit but says almost nothing about what it buys. There is no disclosed portfolio company, property, loan, security, sector allocation, geography, acquisition target, debt facility, investment adviser, CRD number, SEC adviser file, administrator, auditor, custodian or valuation provider. The issuer reports "No Aggregate Net Asset Value," which should be read as the selected Form D size field rather than evidence that the fund literally has no assets: the same filing simultaneously reports $500,000 of securities sold. The one investor is also unidentified. It could be an outside accredited investor, a family office, an affiliated entity, a sponsor commitment or another institutional investor; none of those possibilities is established publicly.
That information gap matters more because the fund uses Rule 506(c). Unlike Rule 506(b), 506(c) permits broad solicitation, but all purchasers must be accredited investors and the issuer must take reasonable steps to verify accredited status. Cornerstone Summit's Form D currently reports one investor and a $50,000 minimum. SEC guidance makes clear that the verification requirement is independent of merely believing the investor is accredited. The filing does not disclose the method used to verify the current investor, which is normal for Form D, but the subscription records should preserve that verification process. The absence of a disclosed broker or placement agent means responsibility for that process appears to remain with the issuer or parties acting on its behalf unless an undisclosed verification service is used.
THE MANAGEMENT-FEE DISCLOSURE PROVIDES AN UNUSUALLY USEFUL LOOK AT FUND ECONOMICS
Item 16 is the most revealing field in the entire filing. Cornerstone Summit estimates $10,000 of gross offering proceeds will be used for an annual management fee based on contemplated called capital and adds that transaction fees and expense reimbursements may also apply. If the current $500,000 sold is the relevant fee base, the estimate implies approximately a 2% annual charge. A $50,000 minimum investor exposed proportionally to a 2% fee would bear roughly $1,000 per year before any additional fund expenses, transaction fees, performance allocation or carried interest. Those calculations are illustrative only because Form D does not disclose the actual contractual percentage, billing frequency, offsets or fee base.
The additional reference to "transaction fees" is particularly important given the principals' construction and real-estate background. If Cornerstone ultimately invests in assets developed, constructed, managed or serviced by related Arrant businesses, investors would need to know whether affiliate payments exist and whether management fees are offset against construction, development, acquisition or transaction fees. No public document reviewed establishes that such related-party transactions currently exist. But because the issuer itself expressly warns that additional transaction fees and reimbursements may apply, the operating agreement should be reviewed for affiliate-conflict language before those economics are treated as fully understood.
SEC OFFERING SNAPSHOT
Legal Name: Cornerstone Summit Fund, LLC
CIK: 0002154433
Accession: 0002154433-26-000001
Jurisdiction: Texas
Year Organized: 2025
Principal Address: 1517 FM 359 Rd Suite 400 Richmond, Texas 77406
Phone: 443-514-4480
Form D Type: New Notice
Signature Date: September 11, 2026
Public Filing Date: September 14, 2026
First Sale: July 31, 2026
Industry: Pooled Investment Fund
Fund Subtype: Other Investment Fund
Hedge Fund: No
Private Equity Fund: No
Venture Capital Fund: No
Investment Company Registered Under 1940 Act: No
Federal Exemption: Rule 506(c)
Investment Company Act Exclusion: Section 3(c)(1)
Security: Pooled Investment Fund Interests
Offering Amount: Indefinite
Amount Sold: $500,000
Amount Remaining: Indefinite
Investors: 1
Minimum Investment: $50,000
Sales Commissions: $0
Finders' Fees: $0
Broker-Dealer: None disclosed
Placement Agent: None disclosed
Aggregate NAV Field: No Aggregate Net Asset Value selected
MANAGEMENT / CONTROL
Executive Officer: Usman Jamal Solaija
Executive Officer: Umair Jamal Solaija
Form D Signer: Usman Solaija
Signer Title: Manager
Promoter Box: Not selected for either executive
Director Box: Not selected for either executive
Investment Adviser: Not identified
Investment Adviser CRD: Not disclosed
SEC Form ADV / 801 Number: Not disclosed
General Partner: Not separately identified because issuer is an LLC
Managing Member: Not separately disclosed in Form D
FEE ECONOMICS
Estimated Annual Management Fee: $10,000
Filing Description: Based on currently contemplated called capital
Additional Fees: Transaction fees may apply Expense reimbursements may apply
Current Amount Sold: $500,000
Implied Fee Ratio if $500,000 is the applicable fee base: Approximately 2.0% annually
Minimum Subscription: $50,000
Illustrative Annual Fee at 2%: Approximately $1,000 per $50,000 of capital
Important Qualification: The actual management fee percentage, fee base, billing schedule and offsets must be determined from the governing documents.
ARRANT OPERATING-ADDRESS CROSS-CHECK
Cornerstone Summit Fund: 1517 FM 359 Rd, Suite 400 Richmond, Texas
Arrant Services: 1517 FM 359 Rd, Suite 400 Richmond, Texas
Arrant Construction: 1517 FM 359 Rd, Suite 400 Richmond, Texas
Research Significance: Exact office overlap ties the new fund's executives to an established operating address used by their other businesses.
ARRANT SERVICES EVIDENCE
Business: Arrant Services
Industry: IT Services and Consulting
Headquarters: Richmond, Texas
Official Services Include: Structured cabling Cybersecurity Network infrastructure Surveillance Physical security Audio visual Digital signage Custom software Power technology SCADA / DAQ
Public Leadership: Usman Solaija - Principal / CEO Umair Solaija - Co-Founder
Official Head Office: 1517 FM 359 Suite 400 Richmond, TX 77406
Research Significance: Provides independent operating-business evidence for both fund executives at the fund's exact headquarters.
ARRANT CONSTRUCTION EVIDENCE
Business: Arrant Construction
Founded: 2020
Industry: Commercial Construction
Headquarters: Richmond, Texas
Official Head Office: 1517 FM 359 Rd Suite 400 Richmond, Texas
Public Services Include: Commercial general contracting Industrial construction Warehouse construction Hospitality Healthcare Multifamily Retail Restaurants Office build-outs
Public Usman Solaija Roles: COO / Partner Previously CTO Technology and Project Management Board involvement
BBB Management Record: Umair J. Solaija listed as Owner
Research Significance: The fund executives have an independently visible construction and development operating history rather than only appearing in an SEC filing.
ARRANT VENTURES / REAL-ESTATE LINK
Usman Solaija Public Role: General Partner at Arrant Ventures
Public Description: Commercial real-estate development principal
Public Focus: Texas commercial real estate Industrial assets Mixed-use assets Land basis control Capital-stack structuring Construction-risk oversight Institutional-grade development execution
Publicly Described Initiatives Include: Houston-area commercial site Flex-industrial strategy Airport projects Hospitality projects
Capital Counterparties Usman Says He Works With: Private equity Family offices Direct lenders High-net-worth investors
Important Qualification: These are public professional descriptions associated with Usman Solaija. They do not establish that Cornerstone Summit Fund owns or finances any named Arrant Ventures project.
STRUCTURAL DISCONNECT WORTH PRESERVING
Public Principal Background: Commercial real estate Construction Development Technology infrastructure
Form D Fund Classification: Other Investment Fund
Form D Real Estate Classification: Not selected
Named Portfolio: None
Named Real-Estate Project: None
Research Interpretation: The sponsor background makes real estate a plausible area of activity, but the fund's own regulatory classification does not permit FilingDossier to describe Cornerstone Summit as a real-estate fund without additional documents.
RULE 506(c) DILIGENCE
Rule 506(c) Allows: General solicitation and advertising
Purchaser Requirement: All purchasers must be accredited investors
Issuer Obligation: Reasonable steps to verify accredited-investor status
Cornerstone Current Investors: 1
Minimum: $50,000
Verification Method: Not disclosed in Form D
Research Significance: The fund's one current investor must fit the 506(c) purchaser requirements; Form D itself does not provide the supporting verification documentation.
WHAT IS STILL NOT PUBLICLY VERIFIED
Official Fund Website: Not confidently identified
Fund-Specific Domain: Not confirmed
Portfolio: Not disclosed
Investment Mandate: Not disclosed
Real-Estate Assets: Not disclosed
Private Companies: Not disclosed
Public Securities: Not disclosed
Debt Strategy: Not disclosed
Geographic Mandate: Not disclosed
Target Fund Size: Indefinite
Current NAV: Not disclosed
Performance: Not disclosed
Management Fee Contractual Rate: Not disclosed
Carried Interest / Incentive Allocation: Not disclosed
Transaction Fee Schedule: Not disclosed
Related-Party Fee Offsets: Not disclosed
Auditor: Not disclosed
Fund Administrator: Not disclosed
Custodian: Not disclosed
Tax Adviser: Not disclosed
Legal Counsel: Not disclosed
Bank: Not disclosed
Subscription Verification Provider: Not disclosed
Investor Identity: Not disclosed
Investor Affiliation With Sponsor: Not disclosed
DOCUMENTS THAT WOULD COMPLETE THE RESEARCH CHAIN
Operating Agreement: Would establish manager powers, voting rights and fee economics
Private Placement Memorandum: Would establish strategy, conflicts and risk factors
Subscription Agreement: Would establish investor eligibility and 506(c) verification mechanics
Capital-Call Records: Would reconcile the $500,000 sold figure with called versus committed capital
Current Portfolio Schedule: Would identify what the fund actually owns
Related-Party Schedule: Would show whether Arrant Ventures, Arrant Construction or Arrant Services receive compensation
Bank / Custody Evidence: Would identify how investor capital and securities are held
Financial Statements: Would establish actual NAV, expenses and investment performance
INDEPENDENT ASSESSMENT
Cornerstone Summit Fund has a stronger sponsor identity trail than its sparse Form D initially suggests. The two executives can be independently connected to functioning technology, construction and commercial-real-estate businesses, and the fund's exact Richmond office is also the established headquarters of Arrant Services and Arrant Construction. Usman Solaija's current public role as a GP at Arrant Ventures and commercial-real-estate development principal adds a credible investment-side background to that operating infrastructure.
At the same time, the fund itself remains unusually opaque. The one-investor $500,000 raise is real and directly reported, but no public document reviewed identifies the underlying asset class or investment. The filing's choice of "Other Investment Fund" instead of a real-estate, private-equity or venture subtype is important and should not be overwritten by assumptions based on the managers' other businesses.
The clearest economics currently visible are the fee disclosures. The estimated $10,000 annual management fee equals approximately 2% of the current $500,000 sold if that amount represents the relevant called-capital base, and the issuer separately warns that transaction fees and reimbursements may also apply. Those additional charges are especially worth reviewing if the fund eventually invests alongside or purchases services from companies associated with the Solaija/Arrant ecosystem.
The strongest current conclusion is therefore narrow but meaningful: Cornerstone Summit Fund is a verifiable Texas pooled investment vehicle with one $500,000 investor, a real operating sponsor network and an identifiable management-fee framework, while its actual portfolio and legal relationship to Arrant Ventures remain unconfirmed. Until the governing documents identify the investment mandate and related-party relationships, it should not be presented as an Arrant real-estate fund merely because its managers have real-estate and construction backgrounds.
Form D is a notice of an exempt offering and does not constitute SEC approval or endorsement of Cornerstone Summit Fund, Usman Solaija, Umair Solaija, Arrant Ventures, Arrant Services or Arrant Construction. Rule 506(c) governs the offering exemption; it does not verify investment quality, portfolio assets or future returns.