Your sister has a legal job. It may be unpleasant to you (I wouldn't be thrilled if my brother worked for a collection agency, for example), but it is still a job and, last I looked, jobs did not define our entire lives.
So do what you would do if she was working as a nun or a brain surgeon. Love her as your sister.
PS For every wag who's going to arrive later, I'll say it for you now - this thread is useless without pictures.