Loopnet is not a magic bullet for commercial deals but it is certainly not a waste of time. 

Does anyone know and willing to share a magical,reliable and professional general contractor with a Dallas flipper investor?

It's not a magic bullet!

"W2" is not a magic word. :)It's incredibly rare that getting fancy with business entities, and/or changing them around (swapping out Sch C for S corp and giving yourself inflated paychecks, for example), within 2 years of wanting a mortgage, is beneficial. 

He was able to work his magic and negotiate for me $90k in unsecured business credit at 0% for my second round of funding bring my total to about $140k; this is going to be a huge help in growing my real estate business. 

They don't just magically come to you.  

Magically, another 10-20 things need to be repaired, and it's always my responsibility.

There is no magic bullet when buying 3/2/2.

Getting a mentor is no magic bullet.

You have movement if tile is cracking.Have heard on other boards the magic thickness of  subfloor is AT LEAST 1 1/4" and 1 1/2" is much better.