If you have an underlying loan, given a choice between a straight contract or a wrap-around contract, offer the wrap-around land contract. It will give you an override on the existing interest rate of the first mortgage. Ask for legal advice about an alienation clause. The lender could call your loan due and payable if the lender discovers you have sold the home through a land contract.
If you need to find a buyer fast, our company is in the land buying business. If you've got time to wait for a few months, then get it posted on your standard online sites (don't underestimate Craigslist!) and consider hiring an agent. If that doesn't work out or you don't feel like waiting, we've got a network of buyers at Landmark Property Buyers.