Hey Scott, so I am like in the discovery/educational phase.

At that point, your ENTIRE ESTATE  is exposed and subject to discovery in subsequent litigation.I am not an attorney and this is not legal advice.My $0.02 ...

What you'll quickly discover is that there are countless real estate investment strategies to choose from.

If that is ignored, you could file suit and in the discovery process you could compel them to produce financial statements.

When you got called out for BS you said it was unfair, but here you are obsessing with ignoring things and just searching for how to blame tenant for anything/everything and defer any responsibility at all including discovery of the actual root cause.     

Ask discovery questions, genuinely care about the answers, and seek to find a solution that falls in line with what is important to the owner.Aim to first establish trust with the owner.

I can choose my projects and fields I want to discover. I

And you mentioned when you sent your letter.Looking it this as an investigator, not a lawyer:You may not have to proceed to trial, but you may have to get to discovery, predominantly to see how - and exactly when - you could have been served with the “NOTICE OF UPDATING MAILING ADDRESS FOR DEFENDANTS AND OBJECTION TO ANY CLAIM ON SECURITY DEPOSIT,” alleged to have been “furnished” to you on March 24, a Friday last year.

Because there is no valid price discovery for them.

During discovery it would (or at least should) come out whether she's had someone out to fix a sewer back up.