If not the framer, then the window company will often have a sub or their own crew.....Better IMO to have the framer/GC do it all....frame, flash, wrap, set and water proof.

One thing I found out while there was that the husband works as a framer, and before that, as a maintenance guy.  

Luckily the lines were high enough that the excavator could still get in safely and dig the foundation but, if it weren't caught on day one and the framers were ready to start on the 2nd floor, we'd be at a standstill. 

I was a framer for a bit, but I don't enjoy construction and have always hired contractors to guide me in that area -- but SALES has made a huge impact on my whole life.The skills I learned in sales helped me talk with sellers and be more persuasive, raise money, prepare and sell my homes, manage tenants and to listen to others.That said -- sales can be a tough racket and sometimes can lead to disaster, so if I could go back to my sales experience I would live by 3 rules: 1) Sell something I really believe in 2) Find a company that has my ethics and integrity and 3) Find a company with a GREAT marketing department so that my prospects already have a great relationship with my product before I arrive.Find those 3 components and take the time to learn sales you can earn some GREAT money while enjoying some flexibility in your schedule (the right sales jobs let you take time off when you need so long as you are making sales).

The framer can probably build them without drawings.

I have the connections to plenty of consultants (PE,SE,CE,GC,etc) but not so much to the subs (framer, conc. layers, plumbers, etc).

I believe about a 6-8 framers, several drywallers, 2 concrete guys, etc.  2 foreman.  

My ex was an electrician who wired the plumber and framers houses and they plumbed and framed ours.

If the framers didn't take a lot of care, it's actually easy to have a hump. 

Wow, that could be a structural problem, or just the building settling. there's no way of telling until you get more info. get a framer or gc to inspect that, if you're not tight on budget, an engineer.