I am trying to use google sheets and google forms as in inventory tracker to have a main page where the items location is. Sell your home without a realtor using our ultimate For Sale By Owner checklist.A complete FSBO guide with the best expert tips! "When I was a Realtor" you had access to everything. Even the forms to fill out that I need are behind the Realtor website in my state, VA. You can also download it, export it or print it out. I've been tracking income and expenses on a very simple Google sheet which separates things into the different properties. A purchase agreement addendum, or "amendment," is added to a real estate purchase agreement to expand or amend the agreement's terms and conditions.