Tenant has boyfriend moving in

[Jack Halldin]

Have a small 644 sq ft condo that has always rented to 1 person. Now my tenant emails me and says fiancé is moving in with her. She has been good tenant, 1+ year, no problems pays rent on time so I'm going to update lease but curious if people have raised rent in these type of situations? It will definitely be twice wear and tear on the place, or do I just deal with it when they leave with security deposit? Also in this situation do I do normal background and credit checks? Thought was originally yes but if I come up with anything bad and I say he doesn't qualify most likely I lose my good tenant. Anyone with similar experience? Would love any insight. Thanks. Jack