Prior to founding his own firm, Mr. DiRuzzo was a partner at Fuerst Ittleman David & Joseph, PL, located in Miami, Florida. During his six years at Fuerst Ittleman, Mr. DiRuzzo worked closely with tax attorney Mitchell S. Fuerst, litigating tax, bank secrecy act, criminal and civil cases throughout the country and in the Caribbean.

Before returning to South Florida, Mr. DiRuzzo spent over two years in the United States Virgin Islands working with tax attorney Marjorie Roberts. During his tenure with that firm, Mr. DiRuzzo was lead counsel on numerous federal taxation cases before United States District Courts and the United States Tax Court involving tax shelter litigation, tax refund litigation, summons enforcement, and freedom of information act actions.

Mr. DiRuzzo has also served as a taxation associate of PricewaterhouseCoopers, LLP, in New York, New York, where he worked in the international taxation department.

In addition, after law school Mr. DiRuzzo was employed by the Office of the Public Defender in Fort Lauderdale, Florida. During his time at the Public Defender's Office he tried several dozen jury trials and handled all stages of the litigation including pre-trial motion practice, trial, and post-trial appeals.