Why This Lawsuit Might Matter to You
You may think, “Why care about a spat between big real estate investors?” The reason: if you’re an investor, or considering investing in real estate syndications, deals like this shape how joint ventures must operate, how partners share risks, and how transparent they are. Also, when litigation erupts, assets, profits, and rights may shift — that could affect return on investment or your stake. So even if you’re not yet involved, the WindMass Capital lawsuit could set precedents in how partnerships in real estate are managed.
Background: What Is the WindMass Capital Lawsuit?

Who is WindMass Capital?
WindMass Capital is a real estate investment / syndication firm. They invest in multifamily properties and run joint ventures. Their team includes founder & CEO Mitchell Voss.
They often partner with other investment firms to acquire, operate, and resell apartment complexes, sharing risk, capital, and management responsibilities.
What the lawsuit is about
In June 2024, WindMass filed a lawsuit in Dallas against one of its partnership co-investors, Fundamental Partners (or Fundamental Advisors), alleging that Fundamental engaged in misconduct, breached contract, and conspired to force WindMass out of their joint venture agreements.
WindMass claims that:
- Fundamental treated the partnership’s properties as “organ donors” to offload costs and losses from unrelated projects onto the joint venture properties.
- Fundamental failed to respond properly to capital calls (requests for additional money), delayed or underfunded their share, and then passed fines or burdens on to WindMass.
- Fundamental removed WindMass from certain “promote interest” roles (i.e. profit participation roles) without proper justification.
- WindMass seeks damages, interest, attorney’s fees, and invalidation of removal notices and cancellation of membership interests.
In response, Fundamental filed a countersuit in October 2024, alleging WindMass failed to honor its obligations. Fundamental says it funded many of the capital calls (about $83.4 million out of $88 million requested), while WindMass contributed far less than required (less than $4 million). Fundamental accuses WindMass of mismanagement, cost overruns, violations of business plans, and purchases of properties in competition without consent.
In sum: it’s a high-stakes fight between co-investors over how profits, losses, capital, and rights should be shared.
A related case in New York
There is another legal action involving WindMass referenced in Fundamental Partners III LP v. Voss et al. in New York. That case involves a mortgage loan agreement of $115 million with guaranties and debt service obligations, where the plaintiff (Fundamental) claims that WindMass (as joint venturer) is obligated to reimburse portions of payments under a guaranty.
In that New York case, the court refused to grant summary judgment under the expedited procedure (CPLR 3213) because the guaranty had indemnification components, meaning more factual issues remained.
So WindMass is involved in multiple legal fronts — one dispute in Texas with co-investors, and another in New York over guaranty and payment obligations.
Who’s Affected / Who Might Be Eligible to Take Action
Here’s who might be impacted:
- Investors in WindMass’s partnerships or joint ventures, particularly those whose capital or returns depend on how profits and liabilities are shared.
- Co-investors or joint venture partners (especially Fundamental) who have contractual rights or obligations.
- Managers or “promote” interest holders (people who were supposed to participate in profits) whose rights may be in dispute.
- Creditors or lenders who provided financing tied to these ventures may be indirectly affected by litigation outcomes.
- Other real estate firms or syndicators — while not parties in this case, they may watch it closely as a precedent in contracts and dispute resolution.
If you invested in a property managed by WindMass, or held a contractual role (equity, promote, management), you might have stakes in the outcome.
Timeline: Key Events (So Far)
Here’s a simplified timeline of what’s known:
- 2020 — WindMass and Fundamental begin purchasing multifamily properties together under LLC partnership structures.
- 2023 — Fundamental faces liquidity and foreclosure issues (e.g. a large multifamily portfolio in Houston). WindMass claims Fundamental lost $50 million and poured $30 million to try to salvage it.
- June 28, 2024 — WindMass files suit against Fundamental in Dallas County District Court.
- October 2024 — Fundamental responds with countersuit alleging WindMass underfunded venture obligations, mismanagement, and contract violations.
- February 13, 2025 — In New York, a court issues a decision in the Fundamental v. Voss case, denying summary judgment in favor of plaintiff, citing factual issues in a guaranty/indemnification agreement.
Future events (motions, trial dates, disclosures) remain pending.
What’s at Stake
Here’s what’s on the line in the WindMass Capital lawsuit:
- Money / damages — WindMass seeks compensation and recovery of lost profits, wrongful removal of promote interests, and damages for breach. Fundamental counters may seek missed contributions and costs they covered.
- Ownership & control — If removal of WindMass’s membership or promote interests is upheld, it could lose its role or profit rights.
- Precedents for joint ventures — How this case resolves could set rules about how co-investors treat capital calls, removal rights, and indemnification.
- Investor confidence / reputation — Litigation of this sort can affect willingness of new investors to partner with WindMass or similar firms.
- Costs, delays, and legal risk — Litigation is expensive: legal fees, discovery costs, and appeals may reduce net recovery.
- Unclear outcomes — Some claims may be dismissed; others may go to trial or settlement.
If WindMass wins, it may recover damages and restore its interests. If it loses, it may face removal, loss of profit shares, or reduced capital returns.
What to Watch Next / Case Updates
If you’re following this case (or involved), here’s what to keep your eyes on:
- Motions to dismiss or summary judgment — Either side may ask courts to dismiss parts of the case or decide legal issues early.
- Discovery & document production — Internal emails, contracts, capital call records, and accounting will matter.
- Trial or arbitration dates — If the cases move forward, courts may set trial calendars.
- Class or derivative procedures — If other investors join in, additional claims or derivative actions may emerge.
- Court rulings or judgments — Judges will rule on liability, contract interpretation, and damages.
- Appeals / enforcement — Even winning judgments may be appealed or contested.
- Settlement discussions — Parties often negotiate to avoid full trial.
If you have investments tied to WindMass deals, stay informed by reviewing court dockets (both Texas and New York), and watch for notices from your investment vehicle.
FAQs
Q1: Am I eligible to participate in this lawsuit or benefit?
You might be, if you invested in a joint venture with WindMass, held equity or profit participation (promote), or had contractual rights affected by the removal or mismanagement. Whether you can take action depends on whether the lawsuit includes or allows third parties to join or file claims.
Q2: Do I need a lawyer?
Yes, getting a securities, real estate, or joint venture litigation attorney is wise. These cases hinge on contract details, accounting, and venture structures, so legal help is often essential.
Q3: When will this case be decided?
It’s unclear. Litigation of this magnitude can take years, with motions, discovery, trial phases, and appeals. There is no fixed end date yet.
Q4: What should I do if I’m an investor in WindMass deals?
Monitor communications from WindMass or your investment vehicle. Check whether you are notified of the lawsuit or class action procedures. Preserve your investment documents: operating agreements, capital call notices, returns, and communications. And consult legal counsel to understand your rights.
Q5: Could WindMass lose its membership or profit interest entirely?
Potentially yes — if the court upholds Fundamental’s removal actions or supports termination of WindMass’s promote or membership interests under the contractual terms. The lawsuit directly contests those removals.
Q6: Can the lawsuit expand or bring other claims later?
Yes — co-investors or other affected parties might join derivative or class actions. New legal theories or ancillary claims may be added as discovery proceeds.
If you have or had financial exposure in WindMass’s projects, particularly multifamily equity or partnership stakes, this lawsuit is not just industry drama — it could directly affect your returns or rights. Keep tabs on court filings, review your agreements, and consult legal counsel if you believe your position may be impacted.

Oliver Johnson is LawScroller’s Senior Legal Correspondent specializing in civil litigation, class actions, and consumer lawsuit coverage. He breaks down complex settlements and court decisions into clear, practical guidance for readers.