Lease/option, rent to own, etc. are being heavily scrutinized by the govermment righ now Anyone engaging in them as the owner/optioner had better know what they're doing or they could end up getting arrested and convicted of a misdemeanor or evern a felony.
You may want to peruse this link for more information. It addresses LO's in the Manufactured Home indusry but applies to any/all real estate related matters:
A lease option, also called Rent-To-Own Property, is where you rent a property and have the option of purchasing the property after a period of time. A portion of your rent money would go towards the purchase price if the option is exorcized. This is called a Rent Credit. Some lenders will accept rent credit as part of the down payment.