I’m 5’4” at 180lbs. Would my weight be a problem for the BBL procedure? (photos)

Based on your photos you are a candidate for a Brazilian Butt Lift. It is important to set up an in-person consultation with a surgeon who specializes in this procedure.Good luck!

Hello dear! 
Based on your photos, you are a good candidate for a liposuction with BBL and tummy tuck, I think you'll get very good results.
Liposuction allows your plastic surgeon to transform your entire shape. You improve your abdomen, waist, back and of course your buttock to give you a beautiful heart shape.
Remember weighting above the established weigh increases the risk of complications during and after your surgery, the BMI range is 30 and it is important have a stable weight in order to have any surgical process. 
I recommend you to make an appointment with a board certified plastic surgeon for a good evaluation and to talk about your goals.
Good luck :)