There were several reasons whe he lived in hotels. I read a book that Majerus wrote years ago. At that time he was not married and the hotel was essential to him because they cleaned his room, did laundry, cook for him, etc. Plus the fact was he traveled all the time so no use owning a home he never lived in. Believe it or not he actually used the hotel workout facilities as well. For as large of a man as he was, he did a lot of treadmill work if I remember right.
He got into coaching by love of the game. He wasn't much of a player; he was just around coaches and players enough to be in position to get a chance
and took advantage of the opportunities
to move up the coaching ranks