This will definitely cause disruption in the mortgage markets and provide opportunities for those who keep a patient watch on activities. 

The idea of it sitting empty caused me emotional damage. 

However, there are tactics the tenant can use to cause delays.

Small details like a handrail on stairs or window locks can cause your unit to fail an inspection, delaying the start of rent payments.

It depends on a lot of factors; primarily the local jurisdiction rules that may limit lease changes (in Portland/Oregon rent, security deposit, screening fees, an no-cause evictions are heavily regulated).

is it cause insurance and the rates?

If you could a way to tokenize good deals I might be on board but I don't want anything to do with the distressed income deals you will likely be able to source unless I had ownership rights and could fix the problems causing the distress.

Further, long-term upward pressures on inflation remain, and will cause the Fed to be cautious with interest rates. 

Due to inflation and the drastic increases in material, labor, and supplies, that's naturally caused carriers to rethink limits/values on file. 

Having all Section 8 tenants may cause you to have a higher cap rate on your exit due to a higher headache factor surrounding Section 8.