If he says it's for materials, offer to pay for the material directly.

If the mold penetrates the wood or drywall too deeply, you may need to replace those materials.

@Ben Lukes It's partially due to the pandemic, but I also don't like the economics of being so dependent on external forces, such as tourists arriving.

(143-210)Material list (Exterior):Base – Garden Wall (Behr PP 730D-4)Trim – Cornerstone (Behr PP 330E-2)Accent – Intellectual (Behr PP UL260-2)Front Door – Roasted Pepper (Behr PP 180D-7)Door Handle – Kwikset Smartkey (754-825)

There are too many variables in remodeling , inspections , ordering materials , unexpected problems , changes  etc.  

I would then charge them for the labor & materials (plus administrative fees of $50) for the damage.

Copies of all invoices and receipts for materials and labor from all vendors for any work completed. 4.

Not exactly aimed at investors, so some of the material won't apply, but most investing material assumes you understand the basic process.

Not sure how often material is updated at each site, but you might find them helpful.Rob BeemanGrindstone FinancialHard Money Mortgages

I'm going to prices the materials 2day..