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At Xenos Law Group, we specialize in both corporate-based and family-based immigration, offering expert legal guidance tailored to your unique needs. For businesses, we provide strategic solutions to help companies navigate the complexities of bringing in top talent, managing international workforce needs, and ensuring compliance with immigration laws. Whether you're sponsoring foreign employees, securing work visas for executives, or addressing immigration matters for investors, we are here to guide you every step of the way.
In addition to corporate immigration, we also offer comprehensive services for family-based immigration, assisting individuals in reuniting with loved ones through the visa and green card process. Whether you’re bringing family members to the U.S. or securing a path to permanent residency, our compassionate team is dedicated to helping families stay together.
We combine integrity, expertise, and personalized service to help you navigate the immigration process with confidence. Let us help you transform immigration challenges into opportunities—whether for your business or your family’s future.
We specialize in corporate- and family-based immigration cases, including:
Employment-Based Nonimmigrant Visas:
TN (Canadian & Mexican)
E1 / E2 (Treaty Traders and Investors)
E3 (Austrialian) (Speciality Occupation)
H-1B (Speciality Occupation)
H-1B1 (Singapore & Chile) (Specialty Occupation)
H-2B (Seasonal workers)
L-1A / L-1B (Intracompany Transfers & New Office)
O-1A / O-1B (Extraordinary Abilities)
R-1 (Religious Workers)
Employment-Based Immigrant Visas / Green Cards:
EB-1A (Extraodinary Ability)
EB-1C (Multinational Managers)
EB-2 NIW (National Interest Waivers)
EB-2 PERM (Advanced Degree or Exceptional Ability)
EB-3 PERM (Professional, Skilled, & Unskilled)
EB-4 (Religious Workers)
EB-5 (Investors)
And more...
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Practice Area
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Chat withState: District of Columbia
Acquired: 2016
No misconduct found
State: New York
Acquired: 2015
No misconduct found
10 Wallace Lane, Washington, PA, 15301
23 Client Reviews
Showing 1 - 5 of 23 reviews
Posted by J and G Pinter | January 23, 2026 | Hired Attorney | Immigration
Exceptional Support Throughout Our Green Card Application Process
Sergio A. Athanasso, Esq., offered wise counsel and meticulous guidance during my EB1-A visa and our subsequent green card application process. Sergio and his entire legal team at Xenos Law Group demonstrated prompt attention, respect, and care during our case preparation. We highly recommend Sergio...
Posted by Ana | January 10, 2026 | Hired Attorney | Immigration
Xenos Law Group are very efficient!
My husband and I had a great experience with Sergio Athanasso. We applied for an E2 Visa and it was approved. Sergio and his team were very attentive, answered every question we had on time, very polite, very professional. Overlooked all our documents, prepared us for interviews. excellent work, wi...
Posted by Elle | December 23, 2025 | Hired Attorney | Immigration
Supportive, Calm, and Truly Exceptional Attorney
I first spoke with Sergio back in January, and I knew immediately that I wanted him to handle my green card case—no doubts at all. From the very beginning, he was welcoming, calm, and instantly put both me and my wife at ease. He perfectly suited our personalities, which was exactly what we needed. ...
Posted by Frantseska | October 27, 2025 | Hired Attorney
Exceptional Service from Start to Finish!
I highly recommend Sergio! From the start, it was clear he loves what he does and is passionate about helping people. As the team leader, he was incredibly helpful, answering every question and personally monitoring my case at every step. Sergio was friendly and professional from day one, making the...
Posted by anonymous | October 17, 2025 | Hired Attorney | Immigration
Flawless Immigration Approval (R-1 Extension & I-360)
I am extremely satisfied and highly recommend Xenos Law Group. They managed two critical applications for me: the R-1 Religious Worker Visa Extension and the I-360 Special Immigrant Religious Worker Petition. The Results Were Exceptional: Both applications were approved quickly and smoothly. Cruc...
"What sets Sergio apart is his unwavering dedication to his clients. He goes above and beyond to ensure that their needs are met, providing personalized, thoughtful guidance throughout the process. His professionalism, attention to detail, and commitment to delivering results make him a standout in the field. If you are seeking an immigration attorney who is truly invested in achieving the best possible outcome, I highly recommend Sergio Athanasso."
Contracts and agreements lawyer
Member
2014
JD - Juris Doctor
2011
BS - Bachelor of Science
Spanish
English
Greek
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