I'd point blank ask the sellers if they have anything to disclose about the house's reputation for being haunted. 

I was getting stared at by people across the street and I'm from New York City so I'm definitely use to a lot of things.

Tim,   your just describing writing a note simple as that.leave blanks on interest rate.. fill It in .. leave blank on term fill  it in.leave blank on monthly payment fill it in or say none.you can also have an equity participation clause I have done hundreds of those.. its really up to you... if you can think it .. it can be done. ( within the laws of your state)

I did find a massive 27,000-line spreadsheet that detailed every house in Hamilton, but the column for "Zone" was blank for every one.

Once again when you have great credit and high available credit limits you will receive blank checks in the mail.

If you are confident, and know where you need to be and point blank ask the agent to put in an offer for 90k when the list price is 100k and he balks at it, even after talking about it, find a new agent. 

@Stephen HarrisTime to go back to a blank drawing board.  

But actually all you need is a blank contract (from a competent, local source) and you are good to go.

In other words, again...I don't rely on any one thing to make a buying decision.You all have been around a lot longer than me, I'm willing to listen to anyone who's willing to fill in the blanks for me.

I would suggest determining what you bring to the table...money, expertise in specific area, etc...and partner with those who can fill in the blanks.