Dreamz. You have to actually stay at the residence you claim for more than six months of the year (as in six months plus one day) to claim residency there. With a few exceptions like active military service and away at school.
Otherwise, you can get in trouble with everyone from social security to home owners insurance (vacant house cost more to insure) to property tax (whether you claim homestead or not), state tax headaches...
We've been dealing with this for the last few years with my mother's estate.