Can any experienced sofa mover come help me take a sofa down a flight of stairs in Seaford today? I'll pay.

Me and the owner couldn't figure out how to maneuver this longer part of a sectional out of his apartment. The angles were just weird, but maybe I'm just a dummy. I'll attach photos. I have the other two parts I just can't for the life of me figure out how to get this last (big) piece out. Thanks, hopefully someone with more experience could lend a hand. It just wouldn't fit into the one side room or bathroom.