With Jenny and Harry occupied Cas went back upstairs to shrink and collect up all of Jenny’s packed up things. He went through the Floo to Potter Manor and put all the boxes in the correct rooms. He also checked to make sure they had all the necessities they needed, making sure the kitchen had dishes and cutlery. As he had the time, he set up the order boxes, so they’d have fresh food being delivered and summoned the House Elves. He wasn’t Lord Potter, and he couldn’t take up the mantle of Lord Potter, Harry was the future Lord Potter, but he was the Potter Regent, so the House Elves would obey him. Thinking of what Sirius said, Cas decided breakfast would be his, Jenny’s, and when Harry was old enough, his responsibility, not the Elves, and they would cook dinner and clean up after dinner twice a week. He made this clear with the House Elves, as well as the fact that they weren’t to clean his or Jenny’s rooms. Harry was old enough to clean up his toys, but too young to have to actually clean his room, so the Elves could still take care of that.