Skip to main content

Louis Domenico D’Agostino has practiced law in Collier County since 1988. From 1988 through April 1997, Mr. D’Agostino practiced with Quarles & Brady, a national law firm based in Milwaukee, Wisconsin with offices in Florida, Arizona, Indianapolis, Indiana, Washington DC, and Chicago, Illinois. In 1997, Mr. D’Agostino joined Cheffy Passidomo as a shareholder and principal of the firm.  Mr. D’Agostino practices primarily in the areas of civil and commercial litigation, and appeals.

Mr. D’Agostino graduated from the University of Notre Dame with a Bachelor of Science degree in 1983 and obtained his law degree from Nova Southeastern University in 1988, graduating summa cum laude and earning the Dean’s Award for Academic Excellence.

In 1997, Mr. D’Agostino was the first lawyer in Collier County to be certified in Appellate Practice by the Florida Bar Board of Legal Specialization and Education, and he was re-certified in Appellate Practice in 2002, 2007, 2012, and 2017.

Mr. D’Agostino is a member of The Florida Bar, Collier County Bar Association, American Bar Association, and is admitted to practice before the United States District Court, Middle District of Florida and the United States Court of Appeals for the Eleventh Circuit. He served as Director and Officer of the Collier County Bar Association (1996-2005) and as President of the Collier County Bar Association (2003-2004).  In 1997, he also served as President of the Trial Lawyers section of the Collier County Bar Association.  Mr. D’Agostino was a member of the Grievance Committee 20B (2001-2002 and 2012-2015) and served as Chairman (2014-2015).  This Committee is responsible for lawyer disciplinary matters and ethical issues for Florida’s Twentieth Judicial Circuit.

Mr. D’Agostino is rated AV by Martindale-Hubbell. He was selected for inclusion in Florida Super Lawyers (2008-2011, 2013-2022). This recognition is reserved for the top five percent of Florida attorneys determined by independent research, and review by both peers and a blue ribbon selection panel.  In 2011 and 2012, Florida Trend magazine named Mr. D’Agostino one of Florida’s Legal Elite, an honor bestowed on only two percent of Florida lawyers.

Bar Admissions

  • The Florida Bar, 1988
  • U.S. District Court, Middle District of Florida, 1988
  • Court of Appeals, Eleventh Circuit, 2005


  • Nova Southeastern University – Shepard Broad Law Center, J.D., Summa Cum Laude, 1988
  • University of Notre Dame, B.S., 1983

Awards & Recognition

  • Dean’s Award for Academic Excellence, Nova Southeastern University Law School, 1988
  • Multiple book awards for academic excellence, Nova Southeastern University Law School
  • Survey Editor – Nova Law Review, 1986-1988
  • Florida Super Lawyers, 2008 – 2011, 2013-2022
  • Florida Trends Legal Elite, Florida Trend Magazine, 2011, 2012
  • AV Preeminent Rating, Martindale-Hubbell
  • Florida Bar Board Certified in Appellate Practice, 1997-present

Memberships & Service to the Legal Profession

  • Collier County Bar Association (CCBA) Member, 1988 – present
  • Collier County Bar Association – Director/Officer, 1996 – 2005
  • President of the Collier County Bar Association, 2003 – 2004
  • President, Collier County Trial Lawyers Section, 1997
  • Member of the Florida Bar Grievance Committee 20B (2001-2002)
  • Member of the Florida Bar Grievance Committee 20B (2012 – 2015)
  • Chair, Florida Bar Grievance Committee 20B (2014-2015)

Speaking Engagements

  • Speaker – Appellate Practice Seminar for the Collier County Bar Association Trial Lawyers Section


  • Author, Recusal of Judges for Reasons of Bias or Prejudice: A Survey of Florida Law — Proposal for Reform, 11 Nova Law Review 201 (1986)
  • Articles published on Appellate Practice – Collier County Bar Association Adverse Witness