State tax filing

I got my Maryland DL and am registered to vote in MD now - I got it in January, 2018.  I will use the MD address on the Federal joint return so I assume I must use the same address on the two state returns.  It really should be part year resident (not nonresident) for me for GA and MD as for 2018, and in the future I will maintain residence in MD.  My spouse is remaining in GA and by the time we file for 2018 we will both file as single.