Assuming, of course, he demonstrates enough ability to attract offers from private firms.
The Practice aired what 8 seasons, 7 with Bobby, only to be replaced with the much better show Boston Legal (who aired only 5 seasons but had good ratings but what made the ratings good is all the people who were watching it had lots of disposable money and thus were better AD targets than the general tv population.)
So yeah I bet Ghavrel will last about 8 years until he decides to sell out and join the Lawyer Coven. Right around the 8 year mark, Ghavrel will probably be an expecting daddy or something to make him reconsider his priorities.
But right before he gives up on law and becomes a sociopathic lawyer, somehow during a case he will meet his new best friend Mr. William Shatner, and through the bonds of friendship Ghavrel will not sell his entire soul to the bar, but instead will only fleece it on a temporary lease renegotiated every 10 years or so.