Looking for a good granite contractor/provider.  I can do the work myself, but need a good place to buy.  

Ideally we are looking for a local supplier where we can pick up the RTA (or assembled) ourselves incase we find out they are damaged.

If I were you, I would ask for all the suppliers they plan on using for the job (tile, plumbing, counters, cabinetry) and you can call every one of them yourself and work with a rep to make selections within your budget. 

It is not likely the general contractor - most likely a subcontractor or supplier who provided labor and/or supplied materials for your property. 

I have a habit of only talking about vendors I'm working with when things go wrong, and I'm trying to change that. So, here is a recommendation on a countertop contractor I worked with on my latest flip-We used KB Fac...

I even have my equipment to spray bathtubs, cabinets, tile, countertops and the chemical supplier in my contact list. 

We have relationships with contractors and material suppliers already established#1, #2 and #3 are the most important for me. 

They help identify large areas of spending that can help you negotiate better with suppliers and PMs.  

One thing I would recommend is that you find a supplier for a product called, " perma-therm" It is an insulating paint like product you spay on the outside of your unit and supposedly will bounce off or reflect about 90%+ of all the heat hitting your unit.

I generally don't buy the cheap LVP at big box stores, but have a local flooring supplier, much better quality for the same price.