Here are nine templates for your next open house. Then, read the best use cases for each sign-in sheet and extra tips to maximize your lead gen opportunities.FSBO Paperwork Forms. Go to a title company. Have the seller fill out listing paperwork with all the details pertaining to the property. This FSBO paperwork is needed as soon as you accept an offer, so it's useful to have a purchase agreement onhand that you can fill out quickly.