If you want to be able to move back, you would need a month to month rental agreement which is what I use for most of my rentals anyway. That way if they are not happy they can leave with 30 day notice and if I am not happy I can give them a 30 day notice.
If I can answer any other questions, feel free to call me at 714-296-7270 or email me at firstname.lastname@example.org.
Broker, e-Pro Internet Certified, SRES(R)
L B Brokerage