The insurance market is very tight right now especially on older buildings.Many carriers who have policies on the books will not accept those same properties as "new business" or if they do the rates are 2x-10x what the current policy premium is. 

Depending on condition: $765,000 - $900,000

It really depends on the scope of work and the person inspecting the work as well as the one issuing the permit.Find someone who knows the permitting system in the municipality where your project is located and have them review the scope, and the work done and see what they think it would take to pull permits after the fact.

It depends on how competitive the market you are in is and if they are doing a BRRRR or flip strategy. 

At the moment, my business partner and I are working on a 300 unit MF development with a $68 million total capitalization here in North Texas.

I don't think house hack is market dependent but it's mostly based on how many building structure you could rent it out ?

They don t depend on appreciation of a STVR for an investment return.

That's subjective and depends on liquidity, risk tolerance, strategy and many other factors.

Of course it all depends on the specifics, and I am happy to discuss that with you.

The return for this type of investor will vary depending on the risk involved.