Pro Forma Advice for New Development

[Nathaniel Schmitt]

Curious to know if someone has any advice on putting together a pro forma for development based on the scenario below.

I have a fellow investor who owns 50+ acers of undeveloped land in the South East. I have him interested in the idea of developing a small community of tiny homes on the land to sell or rent (to be determined). He is at the point now where he would like to be "convinced" with some numbers or a pro forma for the deal. I have done mostly single-family flips or Muilti-familty reposition so this resides a little outside my area of expertise so id love to see if anyone one has any ideas or template they have used to position similar deals.