Nigel Campbell, right, looked to buy a two-bedroom apartment for himself and his husband, Kyle Weekes, for less than $600,000. Clark Hodgin for The New York Times

Nigel Campbell has spent most of his life moving — both his body and his home. Raised in the Bronx, he attended Juilliard for dance and went on to perform with companies around the world, including the Metropolitan Opera Ballet and the Saarländisches Staatstheater in Germany.