This seems to work wells as everyone knows exactly what the water bill will be each month, and prevents any negative feelings towards their neighbors. 

(We asked them to drip the faucets to prevent such issues)3.

Your eyes aren't good enough to do this (no ones is), buy a $5 crack card and check the widths and length of the cracks. 0.006" to 0.014" is normally fine but fill them in with epoxy to prevent rusting and water freezing and expanding in there again.

Thankfully this only affects buyers/sellers as the old doc/zoning on assessors site prevents problems renting out unit.

And in each case the charges are regulated and licensed and public, at least in part to prevent abuse.

Again, would the corporation have any legal grounds to prevent the clearing of trees in this case?

It happens and there is nothing anyone can do to prevent it.

The CDC Covid restriction says you can't evict for non-payment of rent, it doesn't prevent you from evicting for other violations of the lease or for not having a valid lease. - Check local laws, I'm not a lawyer. 2.

Plus the new American Rescue Plan Act has a lot of money allocated to preventing homeowners from defaulting on their mortgages..

It's a weird time, lots of things are happening to lots of people, the govt. is preventing evictions, and you're in the business of providing housing.