This has a maximum shelf life of 180 days from the day LLC B takes title for you to complete the sale of the property owned by LLC A.  

The property is not listed for sale right now but I'd like to approach him with a fair offer that positions me well to capitalize on the value added through additional  units.

There probably aren't that many investor buyers in Spearville and the installment sale would spread the income tax burden for the seller.

It appears to be on a reservation because the Bureau of Indian Affairs is involved, @John D. and it also appears that that it may be a contract for deed (land contract, installment sale contract) where the seller received full payment over time, but never transferred the ownership to the buyer even though it was fully paid by the end of the contract. 

I'm currently in software sales, but have a background in construction (my father was a small builder for 40+ years).  

Her dad would be able to lend us the money and split the profits after the sale of the home. 

Sale price is acceptable, but would want to get it lower.

If for some stupid reason the parties overlooked this in negotiating the sale of the building then the new owner is stuck for what ever is down as security deposit on those leases and is responsible for honoring that to his new tenants.

You'll more input if you provide:Comps, with SF, bed/ba amenities, condition/upgrades at time of sale, etc.Same info for the subject.Don't expect us all to do all the research to come up with the comp.s

I am currently in Houston and looking for job in sales, or real estate.