I imagine that, in every market, there are listing with 85%+ occupancy.

Craigslist lets you list rentals for free or cheap.

It varies but that's probably the list I'd give.

IMO.A typical GC hired by a homeowner to build a home does not do everything you listed.

To provide some context, she initially approached our company to manage her HOA.

When companies or properties are not self sustaining, you would initiate an "owner contribution" to cover any expense the business/rental property could not cover. 

We can even have it listed on airbnb...etc prior to closing.

First problem was a very pushy salesperson contacted me to push my listing live.

There are hundreds of Airbnbs listed now.

Based on the initial information provided, I agree with @Kristine Ann that there does not seem to be enough spread between the asking price and sales comp, considering the work that needs to be do.