Jason W. Griffith, a lawyer who advises private equity firms, companies and family offices in corporate transactions of all sizes, has joined McGuireWoods’ global private equity team as a partner in Chicago.Griffith counsels clients in mergers, acquisitions, dispositions, minority investments and restructurings, as well as general corporate matters. Griffith comes to McGuireWoods from Benesch Friedlander Coplan & Aronoff.• The City of Chicago Office of Inspector General promoted Stephanie A. Snow to chief …