However, after the buyer makes his sixth payment, I give him title to the property, that is I make and record a Warranty Deed to him, and hold a Promissory Note and Deed of Trust in return as security. Finally, as boiler-plate, I have the buyer sign a Quit-claim Deed back to me which is annotated to only be recorded in the event of a default. This, in one stroke lowers my foreclosure costs from around $1,500 to hire an attorney to perform a trustee’s sale, down to about $27 to record the Quit-claim Deed. Since I create all the contracts and deeds myself from standard forms, I save immensely on attorney’s fees. Using this technique, I am prepared both for the long-term sale as well as, should it be necessary, a fast and easy foreclosure.
The county should be fully aware of this change in ownership because they recorded your deed, but in many cases – the city or township administration is in a completely separate office and they don't share the same systems with the county. As such, they need to be notified separately about the property's change in ownership (and if they aren't made aware of the change, they'll continue sending the property tax bills to the old owner).
The first obligation of a vendor to the purchaser is to make sure they can provide clear title to the purchaser, in other words, ensure your property can be freed of any encumbrances or orders or conditions at settlement so that the purchaser has clear title to the property. Your lawyer or conveyancer can assist you with this but the obligation is on you so make sure these matters are worked out before you start signing contracts.
You can also look to certain companies and organizations that have a concentration of people that may fall in the above mentioned roles such as investment companies (i.e. Charles Schwab, Fidelity), financial advising companies (i.e. Morgan Stanley, Merrill Lynch). There may be a higher concentration of people who can both afford and want to build their own custom homes or to build income-producing properties. Try linking yourself to financial advisors who may already know of people who have these types of dreams. This isn't a comprehensive answer of all the possibilities but just some thoughts. Good luck!