@Kirpal Toor - Just wanted to chime in here really quick, I think Greg nailed it above that there are many different types of service models in the industry.

They all used the same the tactic, money.I would offer a generous buyout, which I know will be hard on principle, but you'll spend just as much on lawyers and preserve your sanity in the long run, wishing you the best of luck.

But yeah, use a pipe-wrench to try pound a nail, well duh, it's not the pipe-wrenches fault. 

Best of luck And to add on to point, those of us with some grey in the beard know a 20yr tenant is going to fight tooth and nail to stay.

@Dan Frehmeyer I’d say preserve the asset at all costs!

Andrew nailed it.

Attend a couple of meetups and speak with a few investors face to face, I think that'll give you a jump start on a fresh perspective and may also help you nail down what direction to focus on. 

@stevenmay nailed it. 

@Sam Yin you nailed it as far as growing and achieving in the best market in the country for appreciation.

If they can't, you could test yourself by driving a long thin nail through the drywall that covers the firewall and see if it hits "something really hard" about 1-1/2" in.