A common mistake we see first-time buyers make: sending a seller a due diligence request list — tax returns, detailed P&Ls, customer contracts, employee census, AR aging — right after signing an NDA, sometimes before they've even finished reading the CIM.
It's not that the list is wrong. Eventually, you'll need most of it. The problem is timing. A seller who hasn't received a signed LOI yet has no real commitment from you, and handing over sensitive financial and operational detail to someone who might walk away next week is a real risk to them, not just an inconvenience. Ask for too much too early, and you signal that you don't understand how the process actually works — which is its own kind of red flag to an experienced seller or broker.
What's actually reasonable to ask for, by phase
Before an LOI exists (CIM review): Almost nothing beyond clarifying what's already in the CIM. If the CIM states $600,000 in recurring revenue without breaking out the customer-level detail, it's reasonable to ask a clarifying question about it. It is not reasonable to request a full customer list, contracts, or churn data yet — no seller worth dealing with will produce that for someone who hasn't made a real commitment.
Once an LOI is signed: This is where the foundational financial package becomes fair to request — full multi-year profit and loss statements (not just the summary table a CIM might include), federal tax returns, and a balance sheet. An LOI, even a non-binding one, is a real signal of intent, and most sellers expect this request immediately after signing.
During formal due diligence: Now the full range is appropriate — accounts receivable and payable aging, customer-level contracts and concentration data, employee census and compensation, litigation history, insurance policies, corporate formation documents, and licenses. This is the "kitchen sink" phase, and by this point the seller has usually granted some form of exclusivity, so the relationship can bear the weight of a comprehensive ask.
Near closing: Diligence should largely be finished. What's left is closing-specific — lien releases, payoff letters, and backup for the final closing statement — not new categories of request.
The part that's easy to miss
The foundational documents — full P&Ls, tax returns, a balance sheet — are worth requesting the moment an LOI is signed, not later. We've seen buyers wait until formal due diligence to ask for these, treating them as part of the "big" document dump, when in reality they're exactly the kind of low-friction, foundational ask a seller expects right away. Delaying them just adds weeks to a process that's already going to take long enough.
Why this matters beyond politeness
Getting the sequencing right isn't just about not annoying a seller. It's a signal. A buyer who asks for the right things at the right time reads as someone who has actually done this before, or at least understands how it works — which builds exactly the kind of trust that makes a seller more willing to negotiate in good faith later, when it counts.