She needed to prove herself to Jabba. This is a gangster, he doesn’t just let any schmuck in.
Would Vito Corleone just let anybody hang around his property?
did she absolutely have to bring in Chewie?
umm… Jabba had a bounty on his head… Did you forget? where the hell is Luke and lea supposed to find someone else with a bounty? they’re not bounty hunters. Chewie was her ticket in.