tanent issues - lease break options

[Ron Singh]

So, tanent (renting for about 8 months here) called saying his fiance left, so he can't pay full rent.

both of them are on lease ,now I don't want to be a warden and manage roommates etc.

I would rather prefer to rent to a family vs dealing with roommate issues.

time left in lease= 11 months
SF bay area

- can I allow him to break lease and leave
- can I sell the property (i don't want to ,but if they can't pay and don't leave ? )
- how to make sure they leave nicely, without trashing the place.

what do you suggest in this scenario or how would you deal with the situation