Practice Areas

Practice Areas

Family-Based Immigration

The Law Office of Mary O’Leary represents U.S. citizens and permanent residents petitioning for family members (such as spouses, fiancés, children, parents and siblings) seeking permanent residence – or green card status – applying from both within the United States and abroad. The Law Office of Mary O’Leary has successfully represented many same-sex families in their immigration cases. We have worked with many families to obtain waivers of bars to immigration due to unlawful presence, criminal convictions, fraud or prior deportations. We also work with couples and individuals to remove the conditions on their residence (I-751 petitions) when necessary. The firm has been successful in representing individuals seeking relief under the Violence Against Women Act or seeking U status.

Employment-Based Immigration

The Law Office of Mary O’Leary also works with small-medium companies to obtain nonimmigrant status for foreign workers through visa petitions such as H1B, TN, and L status. We also work with employers to obtain permanent resident status for foreign workers through the labor certification process. We have been successful in representing individuals seeking National Interest Waivers or classification as Aliens of Extraordinary Ability or Outstanding Researchers/Professors. Ms. O’Leary regularly represents religious organizations seeking religious workers (R-1s and I-360 immigrant petitions).


Throughout her career, Ms. O’Leary has represented clients from a wide variety of countries seeking asylum in the United States – both affirmatively before U.S. Citizenship and Immigration Services and defensively before the Immigration Judge for those facing removal from the United States. Additionally, we have represented many individuals seeking cancellation of removal and any other defense to removal that may be available. 

General Immigration

We regularly represent individuals seeking naturalization to become U.S. citizens in both simple and complex cases. We have represented many young people (often known as “DREAMers”) seeking Deferred Action as a Childhood (DACA). We also represent individuals from qualifying countries seeking Temporary Protected Status (TPS).

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