No extra fireproof material was required. 

Make a written evaluation of each applicant:Keeps appointment - On time/Late but called/Late, no callCleanliness - Neatly dressed/Messy/Trashy  -  Vehicle clean/Messy/TrashySocial Media - Posts clean & polite/Crude/Promoting illegal activity/Partier/No posts foundDisposition - Agreeable/Polite/Pleasant/Rude/OffensiveType up a simple form and add the above to your current credit, income, criminal, and reference standards.

I got a promotion at work and just recently moved to Washington state. 

If not it is not benefitial but it might still be worth qualifying this years so that it will help you in other years for something called the material participation rules. 

Out here in California the state is promoting this option to help solve our housing crisis.

It should go without saying, but if you are tight on cash due to not being fully employed, make SURE you have the funds to even buy materials for the remodel. 

I've laid laminate & vinyl boards over some pretty crappy floors with good results, tile would have needed far more prep and materials like CBU or Ditra.

@Alexander Spira A taxpayer qualifies as a real estate professional if (1) more than one-half of the personal services the taxpayer performs in trades or businesses during the tax year are in real property trades or businesses in which the taxpayer materially participates, and (2) hours spent providing personal services in real property trades or businesses in which the taxpayer materially participates total more than 750 during the tax year.You have to meet both tests not just satisfy the 750 hours.

Asbestos is similar with the exception of friable materials, like insulation that can turn to powder when disturbed.

Now you could just account for this in your reserves but I doubt anyone properly budgeted for material spikes of 2020/2021(I know I didn't).