General advice they give is that while there may be years where people do get in with low GPAs, in most cases 3.5 + GPA is competitive.
Also you can't do LAW subjects without being in the degree itself or have had approval to do those subjects as part of the transfer.
The transfer if i remember correctly, is actually a 2 step process:
Apply for transfer into law,
Then complete the LAW units, once you pass that, then you get into the LLB program.