Most cannabis deals do not fall apart at the purchase price. They fall apart three weeks after closing, when the buyer learns the license needed regulator approval nobody applied for, the lease had a change-of-control clause, and half the “assets” were leased equipment. A cannabis due diligence attorney exists to find those things while you can still walk away for free.
Do I need a cannabis due diligence attorney to buy a dispensary?
If the deal involves a state license, yes. Ordinary business diligence checks the books; cannabis diligence checks whether the thing you are buying can legally be transferred to you at all, on what timeline, and with whose approval. A cannabis due diligence attorney reviews the license file, the ownership disclosures, the regulator correspondence, and the local approvals — the four places where cannabis deals actually die.
The rest of the deal is normal M&A. That part is not the part that kills you.
What a cannabis due diligence attorney actually reviews
1. License standing and transferability
Is the license current, in good standing, and free of open enforcement? When does it renew? Every state treats transfers differently, and some require prior written approval before any majority change — we mapped that in our guide to cannabis license transfer and change-of-ownership rules by state.
2. Ownership and disclosure history
Every economic interest, option, convertible note, and management agreement gets tested against what the state was told. Undisclosed control is the single most common latent defect in cannabis M&A, and back-office arrangements can themselves look like control — see when a management services agreement looks like control.
3. Regulatory file and enforcement history
Notices of violation, corrective action plans, recalls, and inspection reports. An open matter is a price adjustment; a concealed one is a lawsuit. Our breakdown of handling a notice of violation doubles as a diligence checklist.
4. Real estate and local approvals
Zoning, special use permits, distance requirements, and the lease itself. A change-of-control clause can hand your seller landlord veto power over your deal — the reason we wrote up the clauses that decide a dispensary lease.
5. Financial and tax exposure
280E treatment, payroll tax, excise filings, and whether the seller has been current with the state. Tax delinquency can block a transfer approval outright.
6. Inventory, IP, and contracts
Seed-to-sale variances, brand ownership, white-label agreements, supply contracts, and the recall allocation buried in each of them.
Under LOI and the clock is running?
Howard Law Group runs cannabis diligence in IL, MO, MI, NY, OH, PA, TX, WI and FL. Bring us in before the deposit goes hard.
Buy-side and sell-side are different jobs
Buy-side: find the defects, price them, and structure around what cannot be fixed — escrow, holdbacks, staged payments tied to regulator approval, and walk rights if approval never lands. Our post on cannabis asset purchase traps covers the structuring side.
Sell-side: run diligence on yourself first. Sellers who clean up disclosure gaps, close out violations, and organize the license file before going to market keep the price they negotiated. Sellers who do not spend the last thirty days conceding.
Why cannabis diligence takes longer than you planned
Because the state is a third party to your deal and it does not care about your closing date. Approval timelines run on agency calendars, background checks, and in many jurisdictions a public meeting. Build that into the LOI or you will be renegotiating an extension from a weak position.
Regulatory authority varies by state — Illinois operators deal with IDFPR, Missouri with DHSS, Michigan with the CRA, and New York with the Office of Cannabis Management. Each has its own definition of a reportable change and its own queue.
How we work
We scope diligence to the deal. A single-location retail acquisition does not need the same workstream as a multi-state roll-up. You get a written findings memo organized by deal risk — walk-away issues, price issues, and papering issues — not a 200-page dump. Where operational cleanup is the answer rather than a legal fix, we coordinate with Collateral Base on SOPs and compliance remediation, and we keep clients current on the rule changes that move approval timelines through Cannabis Legalization News.
Related reading: cannabis license renewal deadlines, cannabis M&A counsel, and how to buy a dispensary in Illinois.
Cannabis due diligence attorney FAQ
How long does cannabis due diligence take?
Document review typically runs two to four weeks. Regulatory approval of the transfer is the long pole and is controlled by the state, not by the parties. Plan the LOI around the approval timeline, not the diligence timeline.
What is the most common deal-killer found in diligence?
Undisclosed ownership or control. Options, profit interests, and management agreements that were never reported to the state create approval risk the buyer inherits.
Can I use my regular corporate lawyer?
For the purchase agreement, often yes. For license transferability, disclosure history, and regulator communications, you want counsel who works in cannabis licensing daily.
What does a cannabis due diligence attorney cost?
It scales with deal complexity and the number of licenses and jurisdictions involved. We scope it up front so you are not buying an open-ended review.
Disclaimer: This page is general information about cannabis transactional and licensing matters, not legal advice, and it does not create an attorney-client relationship. Cannabis licensing and transfer rules vary by state and change frequently. Consult counsel licensed in your jurisdiction before acting on anything described here.