Question about a rental request I received

[Raj Shah]

Hi Everyone- 

I recently had a strange (or maybe not so strange) request arise. This question is not related to my current real estate investments. I live in buncombe county and we are getting ready to put our current home we live in on the market. We are going to put it on the market and if we are not getting offers around our asking price we will rent it. We live in a highly desirable neighborhood, great schools ( walkable) and walkable restaurants/shopping. While we are getting the house ready, we received a phone call from someone who wants to rent our house  for 36 months (at the rent we requested) and then buy it in 36 months. However, she wants to sublet it to someone else ( she does not currently have a renter willing to do this). While this is not what we would want to do, she sent us a contract. The contract is very vague and has no details around who covers the rent if she loses a renter. In addition, she can cancel the agreement at anytime but we as the owners cannot. It is not clear who would manage the property in the contract as well as multiple other details you would routinely see in a rental agreement. 

Has anyone come across offers like this and if so, are they legitimate? Do these people follow through on their end of the deal?

I am happy to share the details ( or lack thereof) of the contract.

Thanks for your help!