California Rule 4.2 prohibits a lawyer from communicating directly with a represented party about the subject of the representation without that party's counsel's consent. In the startup context, the more operationally significant rule is Rule 1.7, which prohibits concurrent representation of clients with directly adverse interests. Together, these rules structure when law firms can represent both companies and their investors — and what founders must consent to when they accept VC-referred counsel.
California Rule of Professional Conduct 4.2 provides that a lawyer representing a client must not communicate directly about the subject matter of the representation with another party the lawyer knows is represented by counsel in that matter, without the other party's lawyer's consent. The rule applies in both directions: your investor's lawyer cannot communicate directly with you about the financing terms if you have your own counsel, and your lawyer cannot communicate directly with the investor about those terms without the investor's counsel's consent. The practical protection the rule provides is significant: it ensures that the party with the most experienced transactional counsel — almost always the institutional investor — cannot use that experience to extract concessions from a founder who is representing themselves or who is less sophisticated about the documents. "Rule 4.2 is one of the most important protections a founder can have in a financing negotiation," Gurpreet S. Bal notes. "But it only works if you have your own counsel. If you use the investor's suggested law firm, you have waived the protection — not formally, but functionally. The firm represents you on paper, but the structural alignment is with the investor." This is not a hypothetical concern about ordinary transactions. It becomes acutely material in the situations that matter most: down rounds with punishing anti-dilution provisions, disputed founder departures where the company's counsel has aligned with the board, acquisitions where the purchase price allocation between preferred and common affects founders and employees substantially, and restructurings where the investor's preference stack creates interests directly opposed to common stockholder recovery.
Large Silicon Valley law firms generate recurring revenue from fund formation, LP agreement drafting, and investment portfolio work for venture funds. This creates an economic architecture where the fund is a much more valuable long-term client than any individual startup the fund backs. When a law firm represents both the startup and maintains economic relationships with the investor, the firm's institutional interests are structurally aligned with preserving the investor relationship — not with protecting the individual founder's interests.
The conflict embedded in investor-recommended counsel is not a function of individual attorney ethics — it is a function of institutional economics. Major Silicon Valley law firms build their practices around institutional client relationships that are vastly more economically significant than any individual startup engagement. A firm that does fund formation work for a major VC fund — drafting the limited partnership agreement, the management company documents, side letters for LP investors, tax structure work — generates substantial fees from a single engagement. That same fund will then refer its portfolio companies to the firm for early-stage work: incorporation, SAFEs, Series A documentation, option plans, routine M&A. The cumulative economic relationship between a major VC fund and its preferred law firm can represent millions of dollars in annual business across the fund's portfolio. A single startup's legal fees — perhaps $50,000 to $150,000 for a Series A round — are a small fraction of that relationship. "When the company's lawyer gets a call from the fund partner asking how the deal is going, they are talking to one of their most important institutional clients," Gurpreet S. Bal says. "That is not a conspiracy. It is just physics. The institutional relationship shapes the dynamics in ways that are invisible in routine transactions and visible only when interests conflict." The firm will typically have disclosed this relationship in the engagement letter and obtained a conflict waiver from the startup — which is the next issue founders need to understand.
An advance conflict waiver is a prospective consent to future conflicts that the firm cannot fully describe at the time of engagement. When founders sign these waivers — as a condition of retaining counsel recommended by their investor — they may be consenting to the firm representing adverse parties in future transactions involving the company, including financing rounds, board disputes, and M&A transactions. Many founders sign these waivers without reading them or understanding what specific future adverse representations they have pre-approved.
An advance conflict waiver is a provision in a legal engagement letter — the contract between the startup and its law firm — by which the client consents in advance to potential future conflicts that the firm cannot yet specifically identify. In the Silicon Valley context, the standard advance waiver typically covers the firm's right to continue representing its existing institutional clients — including VC funds and their affiliates — even in future matters that may be adverse to the startup. Founders sign these waivers routinely, often without reading them, as part of the engagement process for a firm they were recommended to by their investor. What they are consenting to, in substance, is the firm's ability to continue representing the investor in future matters adverse to the startup — including, in some interpretations, the very down round, acquisition, or founder dispute that may arise after the startup engagement concludes. California Rules of Professional Conduct permit advance waivers only when the client has informed consent — meaning the client must understand what they are consenting to, not just sign a document they were handed. "In my experience, very few founders understand what an advance conflict waiver actually means," Gurpreet S. Bal says. "They understand they're signing an engagement letter with a law firm. They do not understand they may be consenting to that firm representing the investor against them in a future dispute." The waiver is not automatically invalid if it was presented in good faith and the firm genuinely believed the client understood. But the practical protection of the conflict rules depends on the client making an informed choice — and that informed choice requires understanding the economic architecture described above before signing anything.
The conflict becomes acute in a down round where investors propose terms that are adverse to founders, a founder separation where the board has decided to remove the CEO, or an M&A negotiation where the acquirer has an existing relationship with the company's law firm. In each case, the founder expects their company's counsel to advocate for the company's — and by extension the founder's — best interests, but the firm's institutional relationships and conflict waivers may prevent that advocacy entirely.
In routine venture transactions — standard SAFE, arm's-length Series A with market terms, IPO process with aligned interests — investor-recommended counsel may function perfectly well, because the interests of company and investor are largely aligned and no one is being harmed by the institutional relationship. The conflict becomes acute when interests genuinely diverge. Down rounds with full-ratchet or weighted-average anti-dilution provisions create situations where the price at which new preferred is issued affects the conversion ratio of all existing preferred — and how that calculation is structured can materially affect what common stockholders receive. If the company's counsel has an institutional relationship with the investor negotiating the down round terms, the independent judgment required to advocate for common stockholder interests is compromised. Acquisitions are another critical moment: purchase price, deal structure, representations and warranty scope, indemnification obligations, and earnout terms all involve trade-offs between preferred and common stockholder interests. A firm that has represented the lead investor through multiple fund cycles is not the firm whose independent judgment founders and employees should rely on to protect their interests in an acquisition negotiation. Founder disputes — the situation Gurpreet S. Bal has described in the companion piece on co-founder pushouts — are the clearest case: once the board decides to remove a founder, the company's counsel represents the board's position. A founder who has been using investor-recommended counsel as their personal lawyer discovers at that moment that they have not, in any meaningful sense, had their own lawyer at all. See also the piece on who your startup's lawyer actually works for for the broader conflict framework.
Before accepting VC-referred counsel, founders should ask whether the firm represents any of the participating investors and in what capacity, request a copy of the conflict waiver and have it reviewed by independent counsel before signing, and retain personal counsel for their individual equity agreements at the time of company formation. For any transaction where founder and company interests could diverge — including every subsequent financing round — founders should assess whether their personal interests require separate legal representation.
The practical response starts at the engagement stage. When your investor recommends a law firm, that recommendation should be treated as useful information about a firm's competence in the space — not as guidance about whose interests that firm is structurally aligned with. Before engaging investor-recommended counsel, ask two specific questions: what institutional relationships does this firm have with my investors, and what does the advance conflict waiver in your engagement letter actually cover? If the firm has a significant fund formation or portfolio company relationship with your lead investor, consider engaging a different firm with no institutional relationship to the investor for any representation that involves a potential conflict — at minimum, for any round in which your investor is participating, and for any situation in which the board and a founder's interests may diverge. This does not require retaining expensive outside counsel for everything. It requires making a deliberate choice, rather than defaulting to whoever the investor suggests, when the institutional alignment matters. In a financing where the investor is sophisticated, represented by experienced counsel, and negotiating terms with a company whose lawyer has an economic relationship with that investor — the founder who is not independently represented has given away the practical protection that the professional responsibility rules were designed to provide. The rule that an attorney cannot communicate with a represented party without their counsel's consent is a powerful protection. But it requires you to actually be represented.
Gurpreet S. Bal is a corporate partner with 16 years advising on private equity, merger transactions, and public offerings for companies and investors at three of the world’s top law firms. He has represented clients in hundreds of transactions with aggregate deal value exceeding $60 billion across AI, semiconductors, fintech, and emerging technology. For more information and to get in touch, visit gurpreetbal.com.