John,
The last one didn’t sell unfortunately, however one HBS that did work for me involved me releasing my option at closing. I had set everything up at a title company of my choice, so I had some level of control there as the sellers were out of town owners as well as family of a very good friend of mine. I didn’t bother recording the option because there was no risk of them shafting me and it was a very low dollar sale, so I was only likely to make a few thousand anyways. I would talk to someone now at the title company about your plans and get them on your side.