@Donald Baptiste, it primarily is the difference between an exclusive, and non-exclusive lease option. I use non-exclusive lease options in my business because I only work with FSBO, and the chances of them finding a cash or conventional buyer quicker than I can find a lease option buyer, are almost 0%. Joe Crump, and Joe McCall both teach this form. The soft option tends to only be 1 page long, and doesn't require you to put any consideration down up front. The hard lease option is a long form option which grants you the right to assign your option (also in a hard lease option, you can do a sandwich lease option if you ensure that the seller gives you permission to sublease the property, but I don't recommend ever doing a sandwich lease option... they can get very messy very quickly.) The hard option can and usually require you to either open escrow, or bring it to a real estate attorney. If you are super concerned, you can record your option on the deed as a "memorandum of option," but then you can bring the due on sale clause into the picture (even though the odds of a lender calling the loan due are extremely low with a memorandum of option recorded). I recommend using hard options if you find a landlord. Which form you use (hard or soft) depends on the types of sellers you're working with. FSBO = soft (or hard, but you can get away by just using soft options). Rental ads = hard, because the seller will always find a renter quicker than you can find a lease option buyer. People who teach the "hard" option, are Wendy Patton, and Josh Cantwell (middle man income).