Help with Short Sale Hoarder House

[Brittany Kryger]

Hi BP community! New investor here looking to househack- have opportunity to short sale a hoarder house (duplex) in a beautiful beach location. It's currently under contract but subject to short term sale approval at $112k with my agent estimating rehab at least 40k. I have private lender set-up to cover cost of purchase + rehab.

Being my first fix/flip, I am having a hard time running number as the house is so bad - there are multiple rooms were are unable to physically see, let alone get into. Whats a good way to estimate rehab cost on a hoarder house that I don't have access to see entire house? General experience on a hoarder house flip?

Market analysis is great for area, my husband and I plan to fix and flip, live in one side and either rent or Airbnb the other unit once rehabbed. Thanks everyone!