In my apartment building I looked into building hookups for the W/D and it was prohibitively expensive.  

I have this prohibited in the lease and even have email proof that they knew this is a violation and acknowledged to me they would not do it.Meanwhile, hopefully all of you Bigger Pockets people will not snitch on me to the authorities!

A negative covenant, prohibiting business and commercial uses of the property, does not bar short-term residential vacation rentals.

I'd go further on this - send the owner a certified letter afterward restating the entire conversation ("as we discussed today, your company is prohibited from performing work on my property").

This subsection does not prohibit a tenant from voluntarily paying more than one and one-half month's rent in advance."

The reason you lawyer was ok with an absolute prohibition on pets is that a service animal is not a pet.

HUD rulings prohibit charging more rent and/or larger security deposits for service and support animals.

Mastiffs are on some insurance company prohibited breeds list. 

If it is cost prohibitive to have a utility do it, submeters are cheap and easy.Each unit should also have it's own individual water shut off, this is an ideal place to install a meter.

I don't know of any law in my state or at the federal level that would prohibit that.