In the early 2000s, Maria had romantic love affairs with Dan McDermott. They dated each other as a loving boyfriend and girlfriend. They also had a child together. However, this love life didn't last that long.
In 2008 when Maria was attending her family birthday party, she flirted with one of the waiter. Later she got engaged to him. They got engaged on 26th of July 2008.
At the end of 2013, Maria revealed that she also had same sex relation with her partner and then friend, Clare Munn. She also wrote an article about this relationship.
Maria got enrolled at Archbishop John Carroll High School. She also completed her high school graduation from there. Later she joined Villanova University and majored in political science. She also earned her undergraduate degree from there. She has been active in acting since 1991. That year she appeared in the TV series, The Commish. Three years later she starred in the TV series, Due South. She played her major acting role in the television series, Mr. & Mrs. Smith. She appeared in about 13 episodes of this series in 1996 starring the role of Mrs. Smith. She was kind of lucky actress as she rose to prominence within a year. She got her rise in fame after she began starring the role of Dr. Anna Del Amico in the TV series, ER. Her net worth is said to be around $8 million dollars.