I had a flying squirrel in the eaves of my attic in a house that I am completely renovating in Pennsylvania. The first time I saw him he was hanging on a wall just staring at me. I gave him a face full of hornet spray. That did not make him move out. I then placed a lit lightbulb in the nest area, and added some cut up Irish Spring bar soap. I heard that they (and I) hate it. The activity was greatly reduced.
Then one evening I was watching TV about 11pm and saw him on a stud at the ceiling in my living room (also under renovation). I got up and loaded my 22 cal rifle with a cartridge that my neighbor gave me. It is known as snake shot. This is actually just a .22 short with very tiny pellets, kind like a tiny shot gun shell. I shot him and that was the end of the problem. Basically, I'd say that shooting is best, and maybe backed up by the Irish Spring and light bulb. Good luck.