[dad911]

Mature couple, your place has been empty, and they come with recommendation from a long-term prior landlord, posting cash up front?

What's not to love? Do your typical due diligence, I know this isn't your first rodeo, nor your local laws.

I like Bell's idea of putting rent in an interest bearing acct, to document your monthly draws.

I'd kick them back the interest if they leave the place spotless. Take pics before they move in(having just watched a landlord-tennant case on Hot Bench lol)