Adding a lease option to offer

[Grace Navera]

I'm planning to make an offer on the property and to make it an attractive offer I plan to add an option for the owners to lease the property from me for 1-2 months as they look for their next home.  Any advice out there on how to structure this? 

I assume I would have them sign a lease agreement and put down a deposit?  I want to make this easy for them but I want to make sure I'm protected too.