My husband has become extremely stressed and disheartened by the situation, to the point where he no longer wants to work with this partner or on the property.The property is divided into two units: the main unit is nearly complete, but the mother-in-law unit is still under construction.

It's great that you have some prior experience overseeing STRs for Airbnb, but to be completely honest with you, being a property manager is by no means an entry-level position and requires a wide variety of experience to do.

They have a realtor that is currently telling them they can sell for $280K, but no one else that has seen the property thinks it could sell for this much given the condition of the house.My husband and I have about 10 years before we'll be able to move home.

@Byron KimThere are no good experiences with home warranty companies from my experience from a landlord perspective .  

There are ways to conduct a one-time restoration of benefits, or to restore benefits, but those require you to refinance the existing mortgage into a conventional loan, or no longer own the home, so they probably aren't worth it with your current scenario. 

I am seeking suggestions for lender(s) that would be willing to lend to our LLC with limited cure period requirement (6 months or less) using Income valuation approach with no / limited additional criteria.

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator – so, they often select the first PMC they call or that calls them back!

For wholesaling start sending mailers, cold calling, anyway you can find a deal and get it under value to sell to a flipper that will still be able to make money. 

My criteria is as follows:1- Primary goal is appreciation over the next 5/6 years, cashflow positive preferred but cashflow neutral at a min.2- Preferred portfolio - Duplex & SFH in TX or Duplex each in TX and FL.3- Area of interest - I-35 corridor by Austin TX and Cape Coral/Lehigh Acres FL.4- Focus is on new construction properties for obvious no immediate maintenance needs and Developer incentives on interest.I know Austin is a no brainer but I would like to get your expert opinion on Cape Coral/Lehigh acres FL area.

I have the reserves in place for the 5% down payment, 15K for emergencies, and have no debts!