After 19 years at Squire Sanders, billion-dollar bond counsel Albert del Castillo, the firm’s Florida regional coordinator, is leaving for Greenberg Traurig.

Del Castillo, 55, is returning to the firm he worked at from 1985 to 1994 for the final chapter of his career.

"They say you can’t come home, but this really is a homecoming," said del Castillo. "I would always say to people, ‘if I was going to be anywhere else I would go to Greenberg.’"

Del Castillo, who starts at Greenberg today, said he was unsure if other attorneys from Squire Sanders would follow him to Greenberg.

"I’m delighted and ecstatic to have him come back," said Matt Gorson, Greenberg’s Miami president. "He’s a terrific lawyer and a really nice person. I was hoping he would return years ago."

Squire Sanders has replaced del Castillo with West Palm Beach partner Tracy Rollins as Florida regional director. A firm spokesman declined comment on del Castillo’s departure.

He is one of the preeminent public finance attorneys in Florida, representing clients like Citizens Property Insurance Corp., Puerto Rico, Miami, Broward County, Fort Lauderdale and the South Broward Hospital District.

He served as bond counsel on more than $12.5 billion of insurance assessment and premium-backed bonds issued by Citizens, $2.8 billion of senior notes issued by the Government Development Bank for Puerto Rico and $500 million of taxable corporate notes issued by the Citizen’s predecessor, the Joint Underwriting Association.

Del Castillo said he was interested in moving to Greenberg to give his clients access to a larger platform and try to compete on a broader scale for work in Jacksonville, Tallahassee, Orlando and Atlanta. Ohio-based Squire Sanders has offices in Tampa, West Palm Beach and Miami and has a significant international presence.

"Greenberg Traurig has 380 lawyers in Florida and seven offices in Florida as well as a 100-lawyer office in Atlanta," del Castillo explained. "I started out my legal career in Atlanta and still have a lot of friends and contacts there.

"For the next phase of my professional career, which will be my last, I wanted to make this client-oriented move."

Greenberg’s public finance practice has 40 people nationwide in 14 cities.

Del Castillo said he’s certain Squire Sanders’ Miami office will survive without him.

The Miami office went through a major expansion in 2005 when the firm merged with Steel Hector & Davis. Squire Sanders has about 1,300 lawyers in 37 offices and 18 countries around the world.