Problem: Finn is a self-employed certified financial planner in Palm Desert, CA. Finn, who used to live in Chicago, continues to own a condominium in that city. He rents the condo to tenants through a Chicago rental agency. Once a year, Finn travels to Chicago to meet with agency to renew his rental agreement and to inspect the condo. May he deduct the costs he incurs on these annual trips, including airfare, meals, and hotel accommodations? If, during his annual stay, Finn attends a performance of the Chicago Symphony, may he deduct the cost of his ticket?