Banks, processors, and asset managers need legal sign-off before they will onboard a crypto or payments company. I write the opinion letters that open those doors.
A crypto legal opinion letter is a formal written analysis from an attorney, addressed to a specific third party — a bank, a payment processor, a crypto exchange weighing a listing, or an institutional counterparty — stating how the law applies to your token, product, or business. The recipient is permitted to rely on it, which is the whole point: it converts your assurances into a conclusion a named lawyer stands behind.
Most companies do not commission an opinion because they want one. They commission it because someone with the money is requiring it before they will onboard you. The opinion that actually clears that bar comes from counsel who understands the securities and banking frameworks and the underlying technology — because the recipient's compliance team will test the reasoning, not just file the letter.
What a crypto opinion letter actually does
An opinion letter does two things at once. It documents a careful legal analysis of your specific facts, and it allocates risk: the recipient can rely on the conclusion, and counsel stands behind the reasoning. For a token, that usually means analyzing whether the asset is an investment contract under SEC v. Howey, whether the manner of sale fits an exemption, and how the SEC's guidance and enforcement posture bear on your distribution.
For a payments business, the same instrument may instead address whether your model is money transmission requiring FinCEN registration and state licensing, how the Bank Secrecy Act applies, and what AML controls a bank should expect to see. The level of assurance matters as well — a recipient sometimes asks for a reasoned 'should' or 'more likely than not' opinion rather than a flat conclusion the law may not support. The common thread is that a sophisticated counterparty is being asked to take a risk, and wants a lawyer's name on the analysis first.
A worked example: the token classification opinion
The most common request is an opinion on whether a token is a security. A real analysis does not cite Howey and stop. It looks at how the token was sold and to whom, what the company said in its marketing and on social media, whether purchasers were led to expect profits from the company's continued efforts, the degree of decentralization at the relevant time, and whether an exemption applies to the manner of sale. The same token can land differently depending on those facts.
For a payment stablecoin, the analysis now also runs through the GENIUS Act (Public Law 119-27), which created a federal framework for permitted issuers and, by July 18, 2028, restricts exchanges and wallet providers to approved stablecoins. A letter that engages with these facts honestly is worth something to a listing committee; one that asserts a conclusion without them is not.
Why exchanges and banks require legal opinions
Exchanges require opinions because a wrong listing decision can expose them to securities liability for the listing itself. Banks require them because onboarding a non-compliant money services business can draw scrutiny from their own examiners. In both cases, your opinion letter is the instrument that lets the institution document a defensible basis to proceed.
This is why a thin or generic opinion backfires. The compliance team on the other side reads it critically, and a letter that hand-waves through the hard parts produces more questions, not fewer. Because I work across tax, securities, and banking regulation — and because I read smart contracts and understand how tokens, settlement, and exchange infrastructure actually function — the opinions I write are built to survive that reading.
How an engagement works, and what it costs
Most engagements begin with a short scoping conversation, followed by a clear engagement letter that states the question, the assumptions, the documents reviewed, the timeline, and the fee before any work begins. Cost tracks scope: a focused securities-classification opinion on one clean token is a contained piece of work; a multi-state money-transmitter and BSA/AML analysis is a larger one. The expensive surprises in this area come from scope that was never pinned down, not from the rate.
I review your documentation — token mechanics, smart contracts, marketing, corporate structure — and deliver a letter your counterparty can rely on. Where the relationship continues, the opinion becomes the first entry in a living compliance library we maintain together.
Need an opinion letter that holds up?
Tell me what your counterparty is asking for. I'll scope the right opinion and tell you exactly what it takes to get there.