I will start this post with a disclaimer: There are people (at least a few) who attended YCT who are good, Ehrlich people that have complete Ne’emanus. Just because the institution is Passul that does not mean that everyone who attended there is.
That being said, to writer.at.heart: A YCT “Rabbi” who claims to be Orthodox with his YCT Smicha without in some way distancing himself from the institution is neither Orthodox nor a Rabbi. Honestly, if there is literally no other option, I’d rather a mod give you my email so you could ask me shailas in emergency situations than him. Rav Schachter has said many times (and I think he is very right) that listening to Psakim from non-Orthodox Rabbis falls under Yeihareg V’al Ya’avor. Your intuition is better than his. He is not someone who should be asked a Shaila in any situation unless he is publicly willing to state that YCT and their associates have done things that put them beyond the pale of our Mesorah.