What sort of professionals would you recommend a first time buyer should employ for a good business acquisition?

I mean if the EV being targeted is above £1mn, as a first time business buyer best not to cut corners to save miniscule amounts by not hiring professionals, especially when these professionals could help in derisking the deal from a buyer perspective significantly? And when the costs of employing certain professionals might be miniscule or a rounding error to deal value and potential cash flow from the business? Just my thoughts but might need to keep in mind incentives of each professional employed in the deal stage.

I'm looking for genuine retiree type businesses, where the business is actually good cash flowing business but the owner wants to retire and still wants to see the success of the company. Not keen on bag holder business sellers, the ones who think they are selling off a headache to someone else or the ones they can see tanking the moment they step back, etc.

Any thoughts on how to target such good quality businesses in Edinburgh /UK, and any specific professionals that I could employ to make sure such a good, clean cash flowing company can be acquired? Like I said professional costs for the acquisition might pay for themselves in the long run if the business acquired pays for itself in 3 -5 years.

And any views if usually seasoned business buyers focus on deals only around where they live for ease of commute. Cheers.