I may have found someone to buy my home, but I dont have a realtor, and dont know how to go about it by myself. What do I need to do in order to make sure all the legal stuff is in place? I want to sell it to them at a low price, so I would much rather not pay a realtor when I already found someone!

Oh, and anyone trying to 'promote' themselves wanting me to use their mortgage company or whatever will be marked as spam.

If you already have a buyer, I would contact a local real estate attorney to help with the documents the the process from now until closing. This will protect you and the buyer. Good luck!