Parker Chapin was also known for its close association with New York City municipal law and real estate developments within the city. The firm numbered some 125 attorneys when it merged with Jenkens & Gilchrist to rebrand under the name Jenkens & Gilchrist Parker Chapin. In 2005, the Parker Chapin partners defected to open a New York office for the Atlanta firm Troutman Sanders. Altogether some 90 attorneys made the move, though the office remained in the same location, in the iconic Chrysler Building. The New York partners had become disenchanted by the massive liabilities that Jenkens was experiencing stemming from its tax shelter practice out of its Chicago office, which eventually led to the collapse of Jenkens.