Later, Beasley established his own firm, Beasley, Casey, Colleran, Erbstein, Thistle &amp; Kline, now known as The Beasley Firm. Beasley became nationally known for his success as a trial lawyer in medical malpractice, products liability, defamation, personal injury, and aviation cases. He tried over 400 cases during his career and won more than 100 jury verdicts in excess of $1 million. Beasley was known for his many complex cases, including some that involved important issues of justice and public policy. Among his most significant wins was a $105 million verdict he won for families of individuals killed in the World Trade Center attacks on September 11, 2001, against Osama bin Laden and Saddam Hussein. Beasley wrote a number of legal handbooks and articles during his career. He taught trial techniques at Temple Law from 1976 to 1980.