Family member still in the business

I am looking at a potential acquisition where the sellers are looking to retire and exit the business but the son is still in the organization as an employee (not an executive role or management role).

The broker mentioned the son does not want to take over the business given the hassle of running a business and have numerous conversations with the seller in the past.

Are there any reservations or concerns I should diligence with this type of scenario if the son is going to remain in the business? Does any one have any positive or negative experiences after completing a similar acquisition in the past?

Thanks!