married, I moved, he did not, income in 2 states and a small business, how to file

I moved last August, we are still married and want to file jointly. I have a small business and work, he also works and one kid in college(he has paid nothing towards for support). I had residency in both Maine and Virginia (moved 8/1/2020).  Turbo tax is saying to file Federal as joint. Then do 2 mock fed returns. ? about how to separate the business and or the kiddo?  Looking to get the most bang for our buck.  And how do we file the state returns, 2 separate ones form Maine and one for Va?  Please help