Security deposits  

In a smaller scale, this is why landlords try to collect as much money upfront as much as possible (e.g. security deposits, first month's rent, last month's rent, etc.). 

I don’t mind paying a fee once I secure the lending. 

The property must be the only security for the loan.

For example, find a secured loan @ 12% for 12 months or less. 

Form an addendum that Jack and Jill sign where Jill acknowledges she will be taking over for full rental payments, damages to the property, and security deposit (would not recommend giving half back to Jack you could argue this would cover him getting of his lease agreement early).  

@Luz Pagan this is pretty typical in a hot market if you are a new player on the scene. 

I think master lease at least provides you with some sense of security on getting the money on-time, headache-free.

My tenants are currently requesting a month to month but I would like them to renew there year lease so I have a little more security.

I feel that im getting to know the larger players in the market by doing that.