How do I write a note on a property I own outright?

[Patrick Britton]

I own a duplex outright that is worth about $110,000 - $120,000.  I would like to write/sell a note so that I can get money out of the place and get some more investments.  Where do i go and what do i do?  This would be a performing note and pretty much everything about it, included the "price" is negotiable.

thanks!