Find the closest properties in terms of location, amenities, etc. on Airbnb/VRBO and compare that way.

Do not just quit claim deed your property!

It comes down to your goal for the property.

But IF the property in question is in compliance with all code, and provides a safe and secure environment, all problems are timely addressed and corrected, and the property is maintained on a professional level, then the investor who has a large capital investment in the property should be entitled to enforce any contracts providing him with the agreed to cash flow. 

Quote from @Bruce Woodruff: Only if you paln on helping other people buy and sell properties.

I recently bought a primary residence all cash and would like to put a HELOC on the property to use as a revolving line of credit for various real estate projects I am working on.

Hello, I'm looking to build an ADU on a property and then convert the two homes into a Condo association.

We rebuilt this property from the cinder blocks What was the outcome?

In the same boat considering going this route with a property :)

Ok, so basically if you have your 25% downpayment you can just go buy any property off the MLS.