I spoke with a sales rep from the Propstream team and they said that their sale price estimates (for non MLS users) are usually within 1% accuracy, but they didn't provide any way to verify that claim.

I filed a claim for loss of rents. 

Don't think about or talk about these things casually because you will be setting an unrealistic expectation with the tenants. 1.

1) Should I file the claim now to 'get in line' prior to knowing the extent of the damages?

The name you select may seem minor but it matters for bank paperwork, claims that are brought, lien filings, deed recordings etc.

Interpleader term that requires the QI to deposit funds with the court in case of disputes or 3rd party claims.

What @Robert Rixer said in terms of cost to build isn't un realistic for our area depending on level of finish and any improvements needed to the dirt.

Let’s start with some basics of realistic expenses offset versus unrealistic gold rush paradigms in a high cost, high tax, low occupancy state:You’re not getting 20% CoC.

I have to check with my mortgage company, could a quick claim be consider?

Rentvine's claim is that they offer help getting set up with double entry accounting.