My husband does this kind of work. I would look in your local phone book for a local guy/gal that does computer work for a living. They’ll probably give you the best service and the most for your dollar.
Husband does this kind of thing all the time. Check their credentials, though. Make sure they’re an MCSE or the equivalent on the MAC side, and ask about their education and work experience.
I’d stay away from the big box places, too. Good Luck!
Local guy was not good. In retrospect he was a Mac guy masquerading as a PC Guy. Not good