The Law Office of Patrick S. Preller is dedicated to serving both the community of Baltimore as well as the residents of the State of Maryland. With over 40 years combined experience, The Law Office of Patrick S. Preller is prepared to meet your legal needs for both civil and criminal litigation.

Joe Mallon is the managing partner of the firm with over 25 years of successfully litigating personal injury and employment cases in federal and state courts throughout the region. During this time, he had distinguished himself as one of Maryland's leading trial attorneys. He has been lead counsel in more than 70 civil trials before juries and judges in Maryland and the District of Columbia. He has achieved numerous large jury verdicts and settlements in state and federal courts in cases that are highly complex and often high profile. He is known for his thorough representation of clients, as evidenced by his remarkable courtroom victories. Described by The Baltimore Sun as advancing “precise legal arguments,” and by a federal judge as obtaining “extraordinary results,” Mr. Mallon has obtained many multi-million dollar results for his clients. The breadth of his practice includes cases of local and national importance. Based on his professional achievement, Mr. Mallon has been voted by his peers as a Super Lawyer in general civil litigation from 2009-2018. Mr. Mallon is a past leader of the J. Dudley Digges Inn of Court. He has frequently been invited to lecture at legal seminars for professional associations. Mr. Mallon previously served as Co-Chair of the American Bar Association, Litigation Section’s Standing Committee on Solo and Small Firms.

Marla Zide’s interest in the law began at a young age, inspired by her father’s work as an attorney. A native of New England, she moved to Maryland in 1993 to attend Goucher College, earning a degree in psychology with a minor in Women’s Studies. She later graduated from the University of Baltimore School of Law in 2001, focusing her studies on family law. During law school, she gained valuable experience through the Family Law Clinic and her work with the Maryland Legal Service Network, where she helped expand access to legal resources across the state. Since her admission to the Maryland Bar in 2001, Ms. Zide has dedicated her practice to guiding clients through family law matters, including divorce, custody, visitation, support, and adoption. She has represented parents, grandparents, and children in Anne Arundel County and throughout Baltimore City, Baltimore County, Howard County, Harford County, and Maryland’s Eastern Shore. Known for her compassionate approach, she strives to provide clear guidance and strong advocacy during times of uncertainty and stress. Marla Zide’s professional achievements have earned her recognition as a “Super Lawyer” in Family Law from 2013 to 2025 and inclusion among the “Top 50 Women Attorneys in Maryland” for multiple years. She remains active in the legal community through her involvement with the Maryland State Bar Association, the Women’s Bar Association, and the Anne Arundel County Bar Association. To speak with Ms. Zide about your family law concerns, call 410-760-9433 to schedule a consultation or complete our online contact form.