Lease-Option, Primer

[Jimmy NA]

I would like to learn about offering leases with an option to purchase to tenants. Specifically, how to structure these agreements. How long is the lease? Should the owner require a non-refundable down-payment? How much of the "rent" goes toward the purchase price? How long to do give the tenant the opportunity to buy? Do you set the price slightly undermarket? Maybe their is an intro. source of information someone can suggest to me. Thanks.

Also, is this a profitable approach