As with other real estate transactions, land contracts require a “closing” to prepare, sign, and file all necessary legal documents. This article discusses the common steps a buyer and seller should take to close on a land contract purchase. For information on land contracts in general, see the Nolo article, The Basics of Land Contracts. And for a variety of useful articles on real estate closings, see Escrow and Closing in Nolo’s Real Estate section.
In terms of paying off the mortgage, you’d have to work directly with the lender to make sure they get paid and that they discharge their mortgage. If you’re unsure about how the process works, then honestly – it probably is best to just work with a title company. It may cost a few hundred dollars more – but for a property like what you’re describing, that’s what I would be doing anyway (I use title companies for anything in excess of $10K). They will take all the guesswork out of this process and make it WAY easier to get the job done.
In order to determine the right buyer for your land, look at the highest and best use to determine where to start placing ads. If it is country land that is perfect for hunting, look for local outdoor forums and clubs to advertise your land. If it is a good home site, a land broker or traditional real estate agent may be best. You can also contact the neighbors, who may be interested in extending their property.
I agree with Ellen Chung, finding the right type of buyer to target is very important. Also, you should consider the amount of time you have to sell the land. If you are short on time due to back taxes owed or other financial obligations, your best bet may be to talk to a vacant land investor. You will not get the full market price for your property, but the typically can pay cash and close quickly.