T.F.
I have not done it and I would never do it without a full report from objective legal and tax counsel reviews off the business.
I would want ALL details regarding AR/AP and especially credit status. Do the owners plan to stay on board to keep consistancy? Sometimes an owner takes a salary to stay on board for a period of time to keep consistancy AND has a no compete contract involved for a period of time... 2-5 yrs or so.
I am sure it can be done and done well... I would be extremely picky about getting full disclosure of every detail... financial, forecasting, credit history, issues and how they were solved, etc.
Good luck if you do it.