Land Only Listings

Make inputting the address optional for land only listings and allow us replace the "square footage" field with " Acreage". I live in a rural area and we do a lot of land only listings. A lot of these listings do not have a physical address yet. They do have tax map numbers that we use to look them up in our local GIS system. We currently use RelaHQ which allows our agents to enter whatever they want in the address field. I would need to have an order form where agents could enter the Tax Map ID and the acreage. The acreage could then be linked to a variable pricing structure.