Joseph A. Blaszkow

Joseph A. Blaszkow


Attorney Joseph A. Blaszkow is a dedicated professional in the field of personal injury and civil litigation, and has been winning cases for his clients since 1981. He has amassed 34 years of experience, litigating cases in Maryland, Virginia, and the District, as well as appellate Courts and the US District Courts in the three jurisdictions.

Mr. Blaszkow was also one of the first attorneys in the Commonwealth of Virginia to obtain punitive damages against a drunk driver who had injured his client.

In his personal time, Mr. Blaszkow is an avid fan of baseball and is a dedicated bike rider, attending events throughout the area.


  • Bachelor of Science, West Virginia University, 1978
  • Jurisdoctorate, Georgetown University School of Law, 1981
Professional Associations:
  • Maryland State Bar Association
  • Virginia Bar Association
  • District of Columbia Bar Association
  • Alexandria Bar Association
  • Virginia Trial Lawyers Association

Marta M. Diaz

Marta M. Diaz

Immigration Attorney

Marta M. Diaz is the newest addition to the Blaszkow Legal team. With over six years of experience in immigration law, she specializes in: asylum, special immigrant Juvenile visas, complex adjustment cases, complex naturalization cases, family based sponsorship cases, U visas, U visa Adjustments and I-90s. Marta has also prepared VAWA cases, cancellation of removal cases, H-1Bs, L1's, TNs, E-3s, and more.

Before law school, Marta worked at a large corporate immigration firm, where she handled H-1Bs and L's. While in law school, she worked full-time at a mid-sized corporate immigration law firm, where she worked on H-1Bs, TN's and E-3s. She then transitioned to a smaller firm that specialized in asylum and complex family-based matters. Marta later interned at Hogar Immigrant Services - CCDA, a well-known non-profit in the DMV area. She has also volunteered with the South Texas Pro Bono Asylum Representation Project (ProBAR) in Harlingen Texas, helping adult detainees at the border.

Marta received her JD from George Mason Law School where she headed the Immigration Law Society and was recognized for her achievements in pro bono work. She has an MA in Latin American Studies from Georgetown University's School of Foreign Service and received her BA in Political Science from Villanova University.

Marta is a fluent Spanish speaker. She also speaks Portuguese and Italian. During her free time, Marta loves practicing yoga, going out for long walks, baking, and checking out new restaurants and cuisines. She is also an avid music lover. Marta enjoys volunteering her time with various non-profits in the area to provide legal assistance to low- income immigrants. She has always had a passion for helping others and working with people who generally do not have access to legal services. She firmly believes in the importance of empowering others.

Marta is licensed to practice in the District of Columbia, and can assist immigration clients throughout the USA.


Chief Paralegal and Investigator

Matt has served the firm since late 2014, starting as a paralegal, and as the office expanded, as Chief Paralegal. Matt is a former law enforcement officer, who specialized in traffic enforcement and accident investigations. Matt brings that experience into law, and serves as the firm's investigator when necessary. He is a certified paralegal, and is currently studying for his advanced paralegal exam.

Matt is an avid railfan, and when not in the office, can usually be found watching trains or stooped over his hobby desk, painting miniature locomotives.


Legal Assistant

Barbara is the right hand of the firm's principal attorney, assisting in scheduling, filing, and other administrative work. Though her work is primarily behind the scenes, she is a very important part of the firm's structure. Barbara has recently taken on additional responsibilities related to billing and accounting.

Barbara is a patron of the arts and can regularly be spied at the Kennedy Center. She is a former professional ballerina.