...Well if any 5'4" actor has the kind of range and talent it takes to convincingly pull off a 6'7" emerald green amazonian proportioned defence attorney, then it can only be Tatiana Maslany!
Seriously though, while I'm not massively familiar with the character, I've always been under the impression that her more popular runs are where she's literally just an otherwise normal looking lawyer in a pantsuit...who just so happens to be green and super strong. A less drunken Jessica Jones with a "unique" complexion. So for the most part they can just go with that.
If the odd full-on Hulk-out is required then there's always CG and/or ex-MMA/pro-wrestling body doubles...and I think I kinda prefer the latter option, to carry on the tradition of Lou Ferrigno.