Are we all clear on this?
Situation is a single 100% owner selling half ownership to someone who will become a partner. If you're going to do this as a "partnership" (and there are a host of reasons not to do this -- ask your lawyer or tax professional for details), then...
- the Purchaser block gets the names and addresses of both partners,
- the word "our" goes in the blank in the line below that ("AND TO _OUR__ EXECUTORS, ADMINISTRATORS, AND ASSIGNS..."), and
- the current owner puts his/her name and signature in the first line of the Seller block.
Alles klar?
In addition, you would be legally imprudent not to have a written partnership agreement in place before doing this -- again, ask your lawyer about how to do this as well as why you'd be better off with an LLC for this sort of arrangement.