The former New England Patriots star has retained Florida-based attorney Jose Baez. The legal team will also include Harvard law professor Ronald Sullivan and New York City lawyer Alex Spiro.
Spiro has confirmed the arrangement to The Associated Press.
Hernandez is awaiting trial for a 2012 double murder in Boston and has pleaded not guilty. He was convicted and sentenced to life in prison last year in the 2013 killing of Odin Lloyd, a man who was dating the sister of Hernandez's fiancee. His lawyers in that case, James Sultan and Charles Rankin, tell the AP in a statement that they "wish Aaron the best."
Baez gained fame during Anthony's 2011 trial on charges that she murdered her 2-year-old daughter, Caylee. The case garnered national media attention after photos showed Anthony partying in the days after her daughter's disappearance.