If you want to sell off a portion of your property without affecting the rest of your land, there are a few steps you can take. First, you'll need to determine if you have a clear deed to the plot of land you want to sell. If you still have a mortgage, you'll need to get a partial release of the mortgage before you can sell the land. This will allow you to transfer title to the buyer without triggering the due on sale clause in your mortgage. You'll also need to check with your local planning or zoning department to see if there are any subdivision requirements that apply to your property. If the land you want to sell is already a separate lot with its own legal description, you can skip this step.
Once you've determined that you have a clear deed and have met any local subdivision requirements, you can list the land for sale. You'll need to negotiate with potential buyers and document the transaction correctly. It's also a good idea to consult with a real estate attorney to ensure that everything is done properly. Keep in mind that selling a portion of your property can be a complex process, so it's important to do your research and seek professional advice if needed.