Meet Our Attorneys


Gregory Gilston, Esquire
Email: ggilston@glesq.com
Dean Lintzeris, Esquire
Email: dean@glesq.com
Gregory Gilston is a family law attorney located In the Greater Philadelphia area. Attorney Gilston is licensed to practice law in Pennsylvania and services clients in Bucks, Chester, Delaware, Montgomery, and Philadelphia counties.
Attorney Gilston graduated from Temple University’s Beasley School of Law. While in law school, Gregory served on the executive board of the Family Law Society, and the Student Wellness Association. He was also an active member of the Student Public Interest Network.
Attorney Gilston is currently an active member of the Doris Jonas Freed Inn of Court, the Philadelphia Bar Association’s Family Law Section and Alternative Dispute Resolution subcommittee, and a member of the Montgomery County Bar Association’s Family Law Section, Young Lawyer’s Section, and Pro Bono Committee. He is also an active contributor to Family Lawyer Magazine and the Montgomery County Bar Association’s quarterly publication.
Prior to entering the legal field, Gregory graduated from the University of Maryland (College Park) with a bachelor’s degree in Psychology and Human Development. He then attended and graduated from Villanova University, where he served as chapter President of Chi Sigma Iota, the honor’s society for mental health counselors. After receiving his master’s degree in counseling, Gregory spent time working as a mental health counselor, facilitator, and consultant at various public service organizations within the city of Philadelphia.
Originally from Long Island, New York, Gregory aspires to establish himself as a premier family law practitioner in the state of Pennsylvania. Gregory understands that individuals who are at a crossroads in their interpersonal relationships often find themselves in a vulnerable position, and therefore he believes that each client must be treated with respect and dignity. Gregory understands the value of establishing a genuine rapport with each client, and therefore works to intimately understand every client’s experience, from start to finish. Gregory hopes to revolutionize the field of family law by facilitating healthy communication amongst family members who find themselves on opposite sides of the legal process.
Dean Lintzeris is a family law, bankruptcy law and estate planning attorney located in Philadelphia, Pennsylvania. Like his colleague, Gregory, Dean is originally from Long Island, New York. He moved to Philadelphia to attend law school and now considers Philly home. Dean is licensed to practice law in Pennsylvania, New Jersey and New York, and is proud to serve the needs of clients in all three states.
Dean graduated from Temple University's Beasley School of Law cum laude, where he served as co-president of the Family Law Society and Vice President of the Tax & Bankruptcy Law Society. After law school, Dean gained valuable experience across the river clerking for the Honorable Nan S. Famular in New Jersey Superior Court's Chancery Division, Camden County. As Chancery clerk, Dean was responsible for reviewing pleadings for injunctive relief, processing emergent motions for stays of Sheriff's sale and eviction on the foreclosure docket, and mediating Landlord-Tenant disputes.
Upon the successful completion of his clerkship, Dean took a position as a union legal services plan attorney at a Philadelphia law firm where he managed a caseload of well over 100 active family and bankruptcy cases for union and private clients. After gaining years of valuable experience litigating cases in Philadelphia and the surrounding counties, Dean went out on his own as a solo practitioner to enable him to further tailor his practice to his clients' needs.
Before settling in Philadelphia, Dean obtained his bachelor's degree in Psychology from Columbia University in New York City and his Master of Laws (LL.M) in European Law from Maastricht University in the Netherlands. He also worked as a paralegal for a major civil litigation firm in New York and a competition/antitrust law firm in Brussels, Belgium.
Dean combines the breadth of his legal experience with the depth of his human experience to provide clients with a sense of safety and stability throughout the legal process. Dean's clients know that he is there for them and that he will always give them his very best.