1. If my opponent has Emp. Galba with King's Pomp on him in his territory at the start of my opponent's rescue attempt, and I use Mess. of Satan to band in Galba, is my opponent's hand still protected with KP from Galba's ability to discard a card in my opponent's hand? In other words, is the hand protection ability residual and continues to protect my opponent's hand even if he's no longer in control of Galba?
Emp. Galba - Each opponent must discard a card from hand (relevant part of the SA for this question).
King's Pomp - Discard opponent's good placed enhancements. Place on your evil king: Negate ignore and site access abilities. Protect your hand from opponent's cards.
2. My opponent has Crowds LS and I rescue with Barnabas (Barnabas cannot target my opponent's deck due to Crowds). My opponent blocks giving me initiative and I play Miracle at the Gate, which negates lost souls, among other things. Can I now use Barnie's ability to search my opponent's deck for a LS or is it too late (since it's an instant ability and not on-going)?
Barnabas - ...Search opponent's deck for a lost soul...
Crowds LS - While you have drawn 4 or fewer cards this turn, protect your hand and deck from opponent's cards.