- Did all 3 closets have the same pre-existing issue or did the tenant cause the damage at different times?

Teak trees are a 10 year for preexisting fields up to 25 years for new plantings.  

New builds are far more desirable, and have less total cost of ownership than many of the stick framed, pre-existing, non conforming older homes. 

Was it essentially mandated by the federal government that everyone get it (regardless of your personal risk level - which if you aren't old and fat or have a pre-existing condition is almost nil)?

There's growing housing desperation to both purchase and sell in markets with pre-existing supply and price constraints. 

If not, then you can invest in a Reg A+ or Reg CF offering or a Reg D 506b if you have a pre-existing relationship with that person.That is where I would start is determing what you can invest in.

A continuing resolution continues the pre-existing appropriations at the same levels as the previous fiscal year (or with minor modifications) for a set amount of time.[1] Continuing resolutions typically provide funding at a rate or formula based on the previous year's funding.[3]If you scroll down to 2025, you'll see the government is funded through 3/14/2025. 

If you identify a problem, ask the seller if it was pre-existing or caused by the current tenant.

I started down this path years ago, taking our pre-existing lease and adding on and adapting it to this utilization.

Acquiring pre-existing rental portfolios?