@Carlos Lez If I were you, I would cease all direct communications & interactions with this tenant (of course, keep records of any messages they send).

Check Evans Butler web site.

You need a web presence.Get a website.Appear credible if you are not.

When you break it down, business is just people interacting with other people. 

EVERY county is different as far as what is free for unofficial copies (Harris County, mostly) and what is pay-per-view (lots) to SOL for web access (many more).

I have been listening to audio books, podcasts, YouTube and searching the web for ideas and answers to my questions.

The other day I tried to log in and it told me my account had been blocked and removed (I am a quite enjoyer of CI and am certain I did nothing that would warrant a ban from the site) and when I tried again to log in just now it brought me to a very cheap looking page where it asked for my name, address, phone number and email to submit a web form about "something strange with my account" Maybe they were hacked? 

The email goes as far as to say that by negotiating with them, it creates a strain on their relationship (with the vendor) and may bring about concerns on the vendor's end that if other clients will also engage in negotiations.For context, though I'm only speculating that it may have been this latest interaction that prompted the email - I received an estimate, decided to call the contractor, which I've done many times in the past with other estimates.

Interact.

In NC, each county has its own rules for trailers and unfortunately there is nothing on the web and no specific individual to call.