Colin D. O’Sullivan is an Arizona native with deep roots in the legal
community. He earned his Bachelor of Business Administration Degree in
Business Administration and Marketing from the University of San Diego
where he graduated Cum Laude. Following his undergraduate education, Mr.
O’Sullivan received his Juris Doctor from the University of Arizona,
James E. Rogers College of Law. While in law school, Colin took advantage
of the February Bar Examination and took the bar exam early during his
third year of law school. Mr. O’Sullivan graduated law school having
already passed the bar exam which allowed him to begin practicing law
Mr. O’Sullivan worked for the Maricopa County Public Defender’s
office for four years. Mr. O’Sullivan has extensive criminal defense
experience having represented clients in hundreds of felony matters and
has handled all types of cases ranging from homicides to misdemeanors.
He has extensive experience handling trials, evidentiary hearings, plea
negotiations, oral arguments, and jury selection; conducting discovery
analysis, legal research, investigation, and witness interviews; and writing
motions and other legal pleadings.
As a trial attorney, Mr. O’Sullivan has tried felony jury trials
ranging from 2nd Degree Murder to Robbery. He has received numerous favorable jury trial
verdicts including obtaining not guilty verdicts on Aggravated Assault
with a Deadly Weapon on Police Officers, Possession of Meth for Sale,
Aggravated Assault with a Deadly Weapon, Aggravated Assault, Kidnapping,
Burglary and Robbery. Mr. O’Sullivan’s oral advocacy and courtroom
experience allows him to persuasively and passionately represent his clients.
Colin D. O’Sullivan is a member of the Arizona State Bar and is licensed
to practice law in Arizona and the United States District Court of Arizona.