Don't understand question. Are you saying you have defaulted on the loan? If so, they own the land and will foreclose on the property with or without your signing a quick deed. I have never heard of a loan company asking for a quick deed. See an attorneys advise on a no-fee consultation visit.
It depends on how much you owe them in back payments (I'm assuming you're overdue on the payments) If you're wanting to get out of the deal and possibly make a few dollars, and don't care much about your credit rating.
I guess what I'm saying is to carefully compare the numbers of what you owe, what they're offering, and how much equity you have in the property.