Don't do it.
If I may offer a word of advice, look at your mortgage carefully, you may very well have a loan that may be assumable, some loans that may be assumable are, (FHA, and VA). If your mortgage is assumable, then buyer may be able to take over the note.
Hopefully this information has been beneficial for you. Should you need additional help, do not hesitate to contact me. I can refer a few escrow companies that can draw up a mortgage note for you.