Crunk Juice is also the name of a 2004 album by Lil Jon and the Eastside Boyz.
Re: tying the porch roof into the main house... I'll add I'd also go with 5/8 CDX ply for the roof sheathing. That added 1/8 goes a long way to resist uplift , and as you know wind in your area is a BIG issue.
Re: How To Put Roof Over Existing Deck. Not sure how you build your roofs but yes, the weight of a roof does put load on beams (or, in the OP's case, 2' cantilevered joists and rim joist). Esp. when the roof has snow on it. OP, Warner has it - new posts and footings for the roof.