I highly doubt they would let a pet shop sell animals in a mall but as long as it was a good quality pet shop with reasonably priced accessories & equipment then it would do well.

You would need to go to the Animal Resource Department on Airport road to get their regulations & requirements for licenses.

Judging from the state of the pet shops here, it can't be difficult to get a license and if they're not actually selling animals then there won't be a problem.