Originally Posted by
USMCFLYR
The fact that he has family in both states will be helpful, but I would look into the rules of establishing residency for the particular state that he is considering. I am not sure if having an address is enough. I don't know - and therefore am suggesting caution - rather than get into some ramble with the IRS over state taxes. The examples I gave were legal ways of establishing residency that you and I are familiar with, and have experience with, through the military.
USMCFLYR
The important thing is that a valid move takes place with the intent of actually residing in the state of choice, if the OP continues to retain property(like registered vehicles or a dwelling) in MD this can create problems. If he has no ties to MD and shows intent to reside in another state it takes very little to do beyond an address and family. A DL, and other paper can be important, but the intent to reside is generally held as the standard and the OP should be aware of this.