arts law

Hi, I really want to do Law or Economics degree (or together, and pair them up with either Arts or International Relations) at Uni in 2027. I was just wondering if anyone could estimate my chances of getting into any of the following unis with my grades. I got to >90 rank school for context...

does notre dame allow for external transfers into another uni's law degree? i got an early offer for notre dame arts/law, but my first choice was unsw/usyd. is there a chance i could externally transfer into unsw/usyd, or should i do an arts degree in unsw/usyd and then internally transfer...