The downside risk:

来源: 于 2010-07-15 07:24:21 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

If real estate market continue drift down, assume the house was now worth 100k and the renter (leasee) move out, then the property would fall back as a rental unit and owner is under water..

There are several ways to continue this:
1) keep marketing it as rent to own
2) rent it out
3) sell it