Oksana Grigorieva just went to see another lawyer -- the second today -- and we've learned this one specializes in employment law.


Although Oksana's legal issues don't relate to employment, sources tell us she's interested in the firm -- Rheuban and Gresen -- for a possible civil lawsuit against Mel Gibson, as well as the criminal investigations into alleged domestic violence and extortion.

TMZ broke the story ... earlier today Oksana met with a lawyer who specializes in computer crimes.