Commit the parcel as their contribution towards the overall cost of the project and then get out a like percentage of the profits? for example: $7 million parcel and $100 million construction cost- gets them around 7% of the project once all of the apartments are sold, that's the end of revenue even if they sold the condos for double their overall cost, 7% of $214 million is nice money, but once it's collected, that's it. Less the $5 million they paid for the 3 sub-parcels
or
Retain the parcel and issue a 100 year lease to the builder. Make year over year revenue
What is the debt service on the cost of the 3 sub-parcels