[Overdrive]

To keep it simple, I'd advertise locally and online, provide my number and an e-mail I use strictly for business, and first come, first served. For the last point, what I mean to say is the first person who contacts me with an offer that includes an actual dollar amount, be it a deposit or the asking/agreed price, is going to get my attention, and if they come with that and both parties are satisfied, it's theirs. I'd make it known up front that that is the case, and if people leave me hanging/waiting, they know that if someone else comes along with the money the only way that person's not getting it is if a deposit and a signed agreement was made by someone else before they came around. That's pretty much it.