With regards to picking up Ally (Accord), I think we should do it. Really, it solves several problems for us; we want actions taken on our behalf and he has the freedom and ability to act on them on our behalf. In return, we can supply him with something that he can't get anywhere else; Incomparable Efficiency Upgrade. Heck, even the name should appeal to Accord.
Accord is almost certainly going to go after Saint for this? IEU: You have increased planning capability for the next four hours to plan to neutralize Saint. We require the safe return of Iris; two hours to plan on how to reduce ebola outbreaks in Africa. Camden plan? Camden plan. There's way too much for us to try tackling on our own, even if we didn't have constraints on us among our base of operations. However, we are more than capable of Administrating, and I strongly suggest we lean on that.
We aren't going to deliberately help him with his criminal endeavors (and given his demonstrated success suggesting that we might have something to add would be somewhat insulting), but he only went into crime to pay for his world hunger schemes. If we make it clear that we both agree that we want to save the world and are willing to cooperate on world-saving endeavors (like 'bring in reinforcements to curtail the Endbringers') then we have the rough framework for a clear and mutually beneficial working relationship which is all a one dot ally is.
The Youth Guard, however, provides an interesting complication. I don't think that Director Coastas-Brown sicced them on us, given how difficult they are to shake once they've gotten a bit of traction, and we're pretty valuable even just for our tech duplication and Thinker powerups. My best guess right now would be either a spiteful Thomas Calvert (possible, though not something I honestly anticipate) or potentially Tattletale trying to trip us up (which would be...workable, I suppose, but if she was worried about interacting with us then why come to Philadelphia?). It's almost certainly not someone in the Philadelphia Protectorate or Director Uriel, as the YG are going to cause them at least as much problems as they'll cause us.
I'd like to see the YG rep and talk to them, see if we can investigate our case. If we can readily access our files, that'd be interesting. If we can't, then that's also interesting (and not necessarily a bar to our investigation).