Tons of flights BOS to DC, not all commutes are created equal but that is a good one to have.
DC is junior, you’ll get it out of training.
Not sure how senior BOS is for Republic.
Welcome aboard to PSA
good luck with parking in BOS :/ no idea how to get employee parking. When I lived in Tampa, I called the airport number and just kept asking for employee parking until someone helped me out. I almost gave up and then got someone who helped and employee parking was best 50 bucks a month I ever spent.