I was working on one of my rental apartments (the house was built in 1902)
I shut off 5 valves and none of them worked !
one was also a water closet feed, I have allot of plumbing exp. as I used to
do side jobs with a Master Plumber, so I shut off the Main and sweat on some
new valves.

Clark

How much would you have charged to "fix" those valves? I am kind of happy
to have discovered this now and not later when I might really need it./

The HOA provides an emergency plumber but thats ONLY for shutting off the
entire townhouse in the case of flooding NOTHING MORE

Fortunately i am not there yet

I am talking to some plumbers waiting for estimates.