Founding Attorney
Ellen Sullivan, Esq. founded Cambridge Immigration Law (formerly Law Office of Ellen Sullivan) in 2014 after practicing immigration law in various settings since 2005. As the supervising attorney and owner of her law firm, Ellen has had the privilege of working with hundreds of individuals, families, and businesses on a wide range of immigration matters. Ellen’s legal team supports individuals and families from countless countries, races, educational and socioeconomic backgrounds, sexual orientations, gender identities, religions... Read More
Ellen Sullivan, Esq. founded Cambridge Immigration Law (formerly Law Office of Ellen Sullivan) in 2014 after practicing immigration law in various settings since 2005. As the supervising attorney and owner of her law firm, Ellen has had the privilege of working with hundreds of individuals, families, and businesses on a wide range of immigration matters. Ellen’s legal team supports individuals and families from countless countries, races, educational and socioeconomic backgrounds, sexual orientations, gender identities, religions, and family statuses as they strive to achieve their life goals through their US immigration journeys.
Prior to founding her own firm, Ellen was a partner in two small law firms and worked at non-profit legal organizations including the Victim Rights Law Center and Centro Presente.
Ellen has been a member of the American Immigration Laws Association for many years, serving in various volunteer capacities including on the Executive Board as Treasurer and Secretary. Ellen is an active member of the Women’s Bar Association. She is a volunteer Hearing Officer on the Massachusetts Board of Bar Overseers.
Ellen has lived in New England, California, Spain, and Argentina. Ellen speaks fluent Spanish, and she is trying to improve her Portuguese skills. (If you speak Portuguese, please feel free to help Ellen practice!)
Ellen lives in Arlington, MA with her family. She cherishes her time with her children; she loves practicing yoga; and from March until November she tends to her perennial garden, constantly adding annuals to brighten up the mix.
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Associate Attorney
Angie is an accomplished immigration and family law attorney with over 16 years of experience in the legal profession. A native of Peru, her personal immigration journey inspired her to help others navigate the complex and often life-changing process of immigration law. Read More
Angie is an accomplished immigration and family law attorney with over 16 years of experience in the legal profession. A native of Peru, her personal immigration journey inspired her to help others navigate the complex and often life-changing process of immigration law.
Attorney Dorney is admitted to practice in Massachusetts (2018) and the U.S. District Court for the Commonwealth of Massachusetts (2024). She holds a Bachelor’s in Law (LLB) from the National University of San Marcos and a Master of Laws in American Law (LLM) from Boston University School of Law. She is an active member of the American Immigration Lawyers Association (AILA) and the Massachusetts Association of Hispanic Attorneys (MAHA).
Prior to joining Cambridge Immigration Law, Attorney Dorney successfully handled Special Immigrant Juvenile Status (SIJS), family-based immigration, and removal defense cases, advocating for clients before USCIS, the Probate and Family Court, and the Executive Office of Immigration Review (EOIR). She has also provided extensive pro bono legal support through Volunteer Lawyers Project, KIND, and Project Citizenship.
Fluent in Spanish and English, Attorney Dorney is dedicated to empowering immigrant families and ensuring they receive the strongest possible representation in their pursuit of the American Dream.
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Associate Attorney
Attorney Sara Trefethen has over seven years of experience in immigration law, focusing on employment-based cases like H-1B, L-1, O-1, and PERM labor certification. She also assists asylum seekers and values clear, prompt client communication. Read More
Sara graduated magna cum laude from Florida State University College of Law and clerked for Judge Richard Smoak. She is admitted in Massachusetts and Florida and is a member of AILA. Residing in Canton, MA, with her family, she enjoys writing sci-fi, gardening, and sports. Read Less
Outreach Attorney
Erin Birmingham Anadu has over 15 years of experience in immigration law. She began her career in litigation, where she honed her exceptional advocacy and negotiation skills. Read More
Erin Birmingham Anadu has over 15 years of experience in immigration law. She began her career in litigation, where she honed her exceptional advocacy and negotiation skills. Erin has represented clients in sensitive and complex legal issues throughout the commonwealth, including federal court and EOIR. Today, as Cambridge Immigration Law’s Outreach Attorney, Erin channels that same dedication and expertise into guiding individuals and families through the complexities of immigration law. Known for her passion for negotiation, unwavering ethics, and commitment to delivering an outstanding client experience, Erin is driven by a deep desire to solve problems and create opportunities for the people she serves.
Erin lives in Boston with her husband and three children. Outside of work, you can find her coaching her kids’ soccer teams, hiking at Blue Hills, or exploring Boston’s restaurant scene.
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Senior Paralegal
Son of Mexican immigrants, Roberto grew up in San Diego, CA. Roberto worked as a paralegal for a bankruptcy law firm before moving to Boston to join the team at Cambridge... Read More
Son of Mexican immigrants, Roberto grew up in San Diego, CA. Roberto worked as a paralegal for a bankruptcy law firm before moving to Boston to join the team at Cambridge Immigration Law and to begin law school at Suffolk University Law.
Roberto obtained his bachelor’s degree in Political Science from Oregon State University where he graduated Summa Cum Laude. Roberto is fluent in Spanish.
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Law Clerk
Meet Ankita Rath, a dedicated Immigration Law Clerk at Cambridge Immigration Law. She has about five years of experience in both employment-based and humanitarian immigration matters... Read More
Meet Ankita Rath, a dedicated Immigration Law Clerk at Cambridge Immigration Law. She has about five years of experience in both employment-based and humanitarian immigration matters.
She holds an LL.M. from Boston College Law School with a concentration in Human Rights, where she was recognized with the Dean’s LLM Leadership Award.
Ankita has extensive experience preparing complex petitions, including asylum applications, waivers, removal defense strategies, and employment-based visas such as H-1B, L-1, PERM filings, etc.
Her long-term goal is to become an immigration attorney and continue advocating for immigrant rights.
Ankita is fluent in multiple South Asian languages. In her free time, she likes to cook new recipes, host her friends, go on walks, and meditate.
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Legal Assistant
Elisabeth is a recent graduate of Northeastern University and a Legal Assistant at Cambridge Immigration Law, where she supports attorneys with legal research, document preparation, and case management... Read More
Elisabeth is a recent graduate of Northeastern University and a Legal Assistant at Cambridge Immigration Law, where she supports attorneys with legal research, document preparation, and case management. She has experience in client advocacy and diversity, equity, and inclusion (DEI) work in both Northern Ireland and Boston.
Originally from the Maryland area (DMV), Elisabeth is fluent in American Sign Language and is a CODA (Child of Deaf Adults).
In her free time, she enjoys reading, practicing yoga, and visiting farmers markets around Boston.
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Legal Assistant
Linh was born and raised in Hanoi, Vietnam, and recently joined Cambridge Immigration Law as a Legal Assistant, supporting attorneys on legal research, document preparation, and case management... Read More
Linh was born and raised in Hanoi, Vietnam, and recently joined Cambridge Immigration Law as a Legal Assistant, supporting attorneys on legal research, document preparation, and case management. Linh holds a Bachelor's degree in Politics and Global Affairs from Southern New Hampshire University.
As an immigrant herself, Linh is deeply passionate about helping others navigate the immigration law system. She is fluent in Vietnamese and has previously served as a Vietnamese Medical and Legal Interpreter for LEP (Limited English Proficiency) individuals in the southern New Hampshire area.
In her free time, Linh likes to cook and bake. Prior to joining Cambridge Immigration Law, Linh ran a home-bakery business specializing in multi-flavor tiramisu and asian-inspired desserts based in Manchester, NH. She now resides in Somerville, MA.
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New Client Specialist
Coming to Boston by way of Ohio, Mary holds a bachelor’s degree in business administration from University of Massachusetts Lowell. She has a diverse background in sales... Read More
Coming to Boston by way of Ohio, Mary holds a bachelor’s degree in business administration from University of Massachusetts Lowell. She has a diverse background in sales, franchising, hospitality, and the fine wine industries. After experiencing a close friend’s challenges with the US immigration system, Mary is motivated to support others as they go through this important, and sometimes stressful and confusing, process. In her work as New Client Specialist, she uses her multifaceted experience to provide a warm and informative welcome to Cambridge Immigration Law’s newest clients.
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Intake Specialist
Amanda Martins joined our team in December 2025 and brings both international experience and a strong legal foundation to her role. She holds a law degree from Brazil and has spent the past three years working in the legal field across both Brazil and the United States. Amanda is fluent in Portuguese and English, allowing her to support a diverse range of clients with clarity and care. Read More
Amanda Martins joined our team in December 2025 and brings both international experience and a strong legal foundation to her role. She holds a law degree from Brazil and has spent the past three years working in the legal field across both Brazil and the United States. Amanda is fluent in Portuguese and English, allowing her to support a diverse range of clients with clarity and care.
Before joining Cambridge Immigration Law, Amanda worked as a legal assistant at a U.S.-based law office, where she focused primarily on family law. Prior to that, she gained hands-on experience in criminal and tax law while working at a law firm in Brazil. She began her legal career as an intern at the Brazilian Public Prosecutor’s Office, an opportunity that introduced her to the practical side of legal work and sparked her interest in pursuing the field further.
Amanda was drawn to the legal field after seeing firsthand how deeply the law affects people’s lives, and how many individuals lack the guidance they need to understand their rights. That insight continues to motivate her dedication to serving clients with empathy, clarity, and professionalism.
Outside of work, she enjoys reading and has recently taken up Krav Maga, which she loves for its balance of physical challenge and mental discipline.
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Legal Assistant
Kelly is a Legal Assistant with 10 years of experience across state and international law. She holds an MA from UNC Greensboro, a BA from Hollins University, and a Legal Assistant Certificate from Georgetown University. Read More
Kelly is a Legal Assistant with 10 years of experience across state and international law. She holds an MA from UNC Greensboro, a BA from Hollins University, and a Legal Assistant Certificate from Georgetown University.
Kelly is committed to efficient legal support and case management. She enjoys traveling and spending time with her family.
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Office Manager
As the Client Services Director for Cambridge Immigration Law, Peter works with the attorneys to serve our clients’ needs and ensure they feel valued and informed throughout... Read More
As the Client Services Director for Cambridge Immigration Law, Peter works with the attorneys to serve our clients’ needs and ensure they feel valued and informed throughout their engagement with us. A born problem-solver with an engaging manner, Peter loves connecting with our clients, many of whom are also our neighbors. After decades as a union carpenter, Peter now works closely with his wife Ellen Sullivan to manage non-legal operations for Cambridge Immigration Law.
A Massachusetts native, Peter earned his Bachelor of Arts in History from University of Massachusetts in Amherst.
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Marketing Manager
Joanna joined Cambridge Immigration Law in June 2025 to lead marketing and brand strategy, connecting the firm’s mission and services with the communities it serves... Read More
She manages content, digital campaigns, partnerships, and events while collaborating with attorneys and staff to ensure every touchpoint reflects the firm’s values of inclusion, clarity, and trusted guidance.
She is passionate about making legal information approachable and helping people access the support they need. Joanna holds a BA from Quinnipiac University and lives in the suburbs with her family.
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Administrative Assistant