If a buyer asked me that question I'd say "you probably need to ask an attorney to answer that question for you!" just joking, but seriously, yes, I'd never dissuade anyone from seeking either legal advice or asking an accountant for advice, because if anything ever went to court I can imagine how bad it would look if I had told a client to not seek other qualified advice.
I've had lawyers become involved in transactions, and yes, sometimes they have been "deal killers" because they have sent back my California Association of Realtor forms (CAR) forms, such as purchase agreement, back to me, revised from their pen, which I won't allow. My CAR forms are drafted by attorneys from the state, and so they are valid contracts as they are written.
Unfortunately in selling a small business the documentation on the business is not 100% from the seller, and so if someone wanted to do, say a forensic audit of the business, it may be difficult because sometimes if not always there will be an element of cash involved in the sales, and so a buyer must do their due diligence, but also see in between the lines when making a thought out decision. Situations like these are when an attorney can tell a client not to do the deal, because their job is to eliminate risk from a situation, and when buying a business, there is always an element of risk involved.