In the law firmsSteptoe & Johnson LLP elected Daniel S. Stringfield to be a firm partner.Stringfield practices on patent litigation and has served in first or second chair roles on cases involving a variety of technologies, including medical devices, software, mobile apps and wireless communications.•FMS Law Group LLC added retired judge James G. Riley as a partner.Riley was former Cook County Probate Division supervising judge. He has more than 18 years of experience presiding over probate matters, including …