Figure out your Net Operating Income and divide by the local market cap rate.

The totality of my plan is to divide 3 equal lots, build economical but marketable homes on each, rent/sell them, then use the equity from them to collateral our forever home on the remainder of the property.

Net Operating Income divided by the prevailing cap rate gives you an estimated value of the property.  

Divide by 25 acres plus the land cost

Divide it by area in the order you will walk through the house with them, and include the price you think is fair (based on your research of the competition) in the document. 

Around here, investors usually back into the price by annualizing the NOI and dividing by the cap rate for the area.

Take that number, and divide it into the cash you put in at the start. 

Handoff with PMC: If PMC handles leasing/renewals, how do you cleanly divide tenant comms so residents aren’t confused about “who does what”?

How will profits be divided? 

Decided to tear out the dividing fence between our buildings and parking lots.