I Have 2 roofers I’ve used that I’d like to give some business to,  but also have a GC for the inside work we’ve been loyal to as well.also should we try another GC out for a spare or stay with one we have worked with as long as his bid is competitive?

My GC isn't great so I probably would have need to ask the roofer and framers etc but you get the putting. 

I recently purchased properties in San Antonio and I wanted to reach out to the Bigger Pockets network for referrals on roofers.

Anyone have trusted roofers they've worked with in the San Antonio market who are used to doing business with investors?

After closing is when they need referrals for a handyman, roofer or boiler guy. 

Hello,Anyone knows a good contractor or bonded workman who can fix a leaking roof in the Greater Seattle area?Thanks,JOY

My advice is creat a project whether it's real or not and get pricing on that project and use that as a baseline so you can scale up or down as needed. also in order to get accurate estimates from contractors without going through weeks worth of back and forth it is best to know trade slang and the major factors affecting each trade ie drywallers will need square footage and finish texture or the fact that roofers bid things by the square(10x10=100sq ft).

Can anyone recommend a roofer in the Columbia area? 

Ask your roofer for a roof certification that you can pass to your buyer. 

Using a separate solar company required coordinating with the roofer and electrician but was worthwhile in the end to be able to finance the cost at some really cheap rates and I also had them finances the cost to re-roof the main home which was at the end of its lifespan.