Are we in the ninth inning or the 5th inning of a double header?

Unless I'm reading the it wrong, it sounds like these would be the appropriate code sections for the beam/girders and that in terms of sizing the engineer is correct.https://codes.iccsafe.org/public/document/IRC2015/...R404.1.9.2 - Masonry piers supporting floor girdersR602.7(1) - Girder Spans and Header Spans for Exterior Bearing WallsR602.7(2) - Girder Spans and Header Spans for Interior Bearing Walls

(I have no vested interest- just mentioning my perspective) This is what my header looks like on USBank currently. 

But even in the second case you mention, if a permit is required you should get one - doors, walls and windows require headers, right?

Specifically, start reading from the header that says "Verification of Multi-Unit Property Securing the VA loan."

Toe nail 2x4 into header and new bottom plate.  

I can only assume that all of your door and window headers will now be undersized.

Headers in load bearing openings were also often undersized for today's heavier loads causing sags in openings.

@David RamirezI guess your question is the subject header of the thread? 

The garage door frame was sagging in a manner that the support header was almost about to fail.