Planning for selling my MIL’s (80yo) house and buying a smaller one. Questions about financing the swap smartly. Hi all, My MIL owns her home outright and has more than enough equity to purchase a smaller home. She is alone and just doesn’t need the space, and we’d love to have her closer to us. So, we’d obviously buy a new house and then sell the old one. What’s the smartest way to work that? 30 mortgage for a couple of months while selling, then pay it o…