Lawyer Sinan Keskin was born in Kastamonu to a family with legal experts such as two lawyers, one Supreme Court Member and Penal Judge graduated from Yeditepe University Law School with outstanding success and he has sustained his legal expert mission from the first day he graduated until today as a lawyer registered in İstanbul Bar Association. From 2007, he has been working as managing partner in Öncü & Keskin Law Firm in Ataşehir especially in Criminal Law, Family Law, Sport Law and Real-Estate Law.