Plumbers, electricians, roofers, etc . . . but not GCs.  

Her son is a roofer.  

I have high quality roofers and unbeatable prices.

do not think a GC license is the same in all states or that it will protect you - in CT all it takes to get a GC license is like $200 and a postage stamp - these guys can do roofs too - I think in NY you actually have to demonstrate you know about roofing to get a roofer license - check the procedure before you think a piece of paper means more than it does, and keep in mind the BBB and/or the state may not help you and that it will likely be your money that gets drained if you sue an LLC

What do roofers charge per square (10x10)?

Bigger things like a new roof, he will contract out with a licensed roofer etc. 

Ps: A couple of my properties got roof hurricane damage, I have the option to either fix it ( repair) myself and that will cost me like 10k or have insurance fix it which they maybe be forced / challenged by the roofer to replace the whole roofs door about 120k.Thank you

I have a large list of vendors that I work with from home inspectors, roofers, to mortgage loan officers.  

That makes a big difference believe it or not as a lot of roofers can't/won't do the tuck pointing in house.

@Arturo Hernandez I have a great roofer if you are still looking for one.