Hi all - want to gather some popular opinions on how much to invest into diligence for a small sized transaction.

Business is B2B software and customers are either on monthly/annual subscription basis with a few larger clients that pay by pay-per-use model. Not too many expenses (i.e. no marketing cost, 1 contractor HC).

Entering into LOI and have a fast 4-week closing timeline. First time acquisition (minus a much smaller one in the past that didn't require diligence). Current thinking is to perform financial diligence by ourselves (from finance background).

Main question is around what type of legal diligence to engage and how much to budget for that? Any other types of diligence I'm missing for this size of transaction? Thanks in advance!