First I would say definitely stop picking her up and carrying her when she does that - it sends the message that if she plants her tushy on the ground she gets to be held. Maybe try walks with two people, then slowly phase that out until she can walk on her own. I would also say treats and a LOT of positive reinforcement when she is walking will help...my pup has the opposite problem. She PULLS and pulls to walk away from the apartment, then doesn't want to go back because she loves walking so much. Silly pups.
New mama to Lady - a charming ruby cavalier puppy. I love her more than chocolate.