Maria Tejedor graduated from the University of South Florida, Magna Cum Laude in 1992. In 1993, she commenced law school at Stetson University, the number one ranked law school in trial advocacy. In 1994, she competed in a college wide competition, and was selected among her peers by Stetson to become a member of the law school's prestigious and select trial team. She spent the next two years representing Stetson college of law in national and state wide trial competitions. The years she competed, Steston college of law maintained its number one nationally ranking in trial advocacy.
In 1995, Maria Tejedor was the first place winner of the American criminal defense bar national trial competition that same year. Ms. Tejedor took second place in both the Florida Bar's State Trial Competition and the Academy of Florida Trial Lawyers State Competition. She was the 1996 Regional Champion in the American Bar Association Nation Trial Competition and awarded the American College of Trial Lawyers Medal for Excellence in Trial Advocacy. In 1996, At graduation, Stetson University College of Law presented her with the Harris Ferrel Competition Award for Individual Excellence in Intercollegiate Trial Competition.
In 1996, she joined the law firm of Martinez, Manglardi and Diez-Arguelles. In 2002, she become one of the youngest women to be Board Certified in the State of Florida. That same year she was named a full parter at the law firm and the name was changed to Martinez, Manglardi, Diez-Arguelles & Tejedor.
In 2009, with a passion for helping hurt children, she founded the law firm of Diez-Arguelles and Tejedor and became its managing partner. Maria Tejedor has successfully tried cases throughout Florida in counties which include Orange, Osceola, Seminole, Hillsborough, Clay, Dade, Polk, Volusia, Leon, Broward, and Alachua Counties.
Ms. Tejedor has a focus in medical malpractice cases including injuries to children as well as mass torts and dangerous drugs. She is a member of the national Million Dollar Advocates Forum. She has served as Treasurer of the Hispanic Bar Association. In 2009, she was appointed to the Orange County Grievance Ethics Committee. She is also a frequent speaker on medical malpractice.