In the law firmsMarkoff Law LLC partner Robert G. Markoff was appointed chairman emeritus of the National Creditors Bar Association, formerly the National Association of Retail Collection Attorneys.He is a past association president and the first person after the association’s founder to hold the position of chairman emeritus.• McGuireWoods LLP’s fintech group earned a nationwide ranking in Chambers and Partners’ 2018 Fintech Guide.Sarah A. Zielinski, co-leader of the firm’s national fintech …