Does anyone know of reputable insurance providers they recommend?

Nowadays a plumber costs a bit, but you need to have "$100's" handy. 

please, send me a reputable source for this millions and millions figure. 

There are definitely a lot of wholesalers doing "DTA (Direct To Agent)" but you really need to know what you are doing otherwise if you are just someone who is tying up their deal and wasting their time if you can't properly dispo it, you're going to burn your reputation.

Its to the point they just call my plumber to replace faucets and leaky toilets (we have really bad hard water here in NJ). 

When your plumber doesn't show up because he chose a bigger job or a client that he had a long standing relationship with over your job that's frustrating but it's a reality.  

Oh, and personally those who see insurance companies not ready to pay to me means they need to understand their coverage better and/or hire a more reputable company.The board doesn't even have much of any threads about actually being frivously (is that the term/category we are talking about?) 

Account Closed this is an interesting project by a reputable developer.

Although, the company I am researching has a good reputation and appears very supportive.

That was your first and only chance to make a good credible reputation and it is gone.