@Keith AnnisI'm not an attorney, but I don't think you need to prove anything to impose a fee that is a legitimate provision in your lease.I think it would be on the tenant to challenge the validity of it in court as a defense to the eviction you file for nonpayment of the fee, and the judge would then make a judgement based on both sides of the story (your explanation as to why you believed it to be occurring, and the tenant's explanation that it was not).

When the market rose the day April's unemployment announcements were made, one explanation is the numbers were not as bad as the majority of participants had thought. 

Security deposit amountYou can find plenty of examples by searching for "tenant estoppel certificate doc" or exchange "doc" with "pdf" for more options.Here is an example and explanation: https://eforms.com/rental/esto...Some have a lot of legal jargon but this document does not need to be so detailed.

So from his explanation, they, "do it all"; they are a property manager, they can hook me up with hard money lenders, contractors, they will help me find the properties that I am looking for, etc.

The SSVF explanation really helped. 

Wow that’s an excellent explanation thank you very much!  

I am still unsure how but this is what I was told and it wasn't cheap for the explanation. 

The city will do a manual reading today and I'll drive down there tonight and see what's going on (though I've been there a few times already and there are no obvious signs of leak).Another contractor did some basic dry walling, painting, and yard work to make ready for sale but I can't imagine that had anything to do with anything.A few questions to anyone who's been in this situation:- What are some possible explanations for this insane water bill on a 1700 sqft SFH?

There's some explanation for the discrepancies, but you've provided some insight into which direction for us to go.1.

@Dave SpoonerThank you , this explanation was very helpful.