Jobs in Europe are possible. She is an expert in U.S. law of some type. She is a legal consultant, not a practicing lawyer--she will studiously stay away from advising on local law.

I personally know several U.S. lawyers and accountants making money happily in Europe, advising people on the fabulosity that is the U.S. legal system.

Disclaimer: I am a lawyer.

Offer: if your wife's expertise is in tax, contact me.