Sergio Antonio Athanasso

Sergio Antonio Athanasso

5.0
Rating: 7.0

Licensed for 10 years

Immigration Lawyer at Washington, PA
Practice Areas: Immigration

10 Wallace Lane, Washington, PA

About Sergio

Biography

Practice Areas

1

Practice Area

Fees and Rates

We have not found any cost information for this lawyer


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Licenses

Licensed in District of Columbia for 9 years

State: District of Columbia

Acquired: 2016

Good Standing

No misconduct found

Licensed in New York for 10 years

State: New York

Acquired: 2015

Currently Registered

No misconduct found

Location

Xenos Law Group

10 Wallace Lane, Washington, PA, 15301

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Sergio Antonio Athanasso's Reviews

Avvo Review Score

5.0 /5.0

23 Client Reviews

Filter Avvo Reviews (23) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 15 reviews | Practice Area Knowledge

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...'s and Xenos Law Group’s services to professionals who qualify to become a permanent resident of the United States.

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. ... Throughout the process, Sergio was incredibly supportive and understanding. I was blown away by the communication we had—he explained everything so clearly that I never felt like just a client; I felt part of a family. Any question we had was answered within hours, and he made a process that can be scary feel manageable and even reassuring. A call with him before our interview made us feel completely prepared and confident. Sergio filed everything so perfectly that we didn’t need to provide any additional proof. Thanks to his guidance, we can now live the future we’ve dreamed of. I would highly recommend Sergio to anyone needing an immigration attorney—he truly makes the process feel seamless and supportive.

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...ially, the I-360 petition was approved without a Request for Evidence (RFE), a testament to the firm's meticulous preparation and deep legal knowledge. Why I Recommend Them: Working with Xenos Law Group was an outstanding experience. They offer a rare combination of: Knowledge: Expertise in complex religious worker law. Process Efficiency: Streamlined procedures and prompt communication. Personal Service: Genuine, supportive, and stress-reducing service. If you need an immigration attorney who delivers top results with 100% professionalism and care, choose Xenos Law Group. They made a stressful process manageable and ensured my approved status.

Posted by Dodla Siddarth S | October 10, 2025 | Hired Attorney | Immigration

Expert Legal Support That Made My L-1A Approval Effortless

Sergio and his team helped me with my L-1A new office petition, and I’m thrilled to share that it was approved without an RFE. Their expertise, precision, and clear communication made the entire process smooth and stress-free. I truly appreciated the personal attention and the way they handled every ...detail with care. I would highly recommend Sergio Law to any business owner looking for a knowledgeable and trustworthy immigration firm.

Posted by anonymous | April 15, 2025 | Hired Attorney | Immigration

Green Card

Me and my husband did our green card process through Sergio’s law firm and I couldn’t be happier with how smoothly it went . We had a deadline for applying for the green card and we managed to collect all the documents and evidence in 48 hrs , of course with Sergio’s help and the help of his assista...nts and them being responsive and focused on our case . Extremely professional and fun to work with . I am very grateful we were lucky to be approved in a year since applying, but more grateful we had such a n amazing lawyer .

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Sergio Antonio Athanasso's Lawyer Endorsements

Endorse Sergio
Evangelia Marina Moreno headshot
Evangelia Moreno

Immigration lawyer | Jan 21

Relationship: Worked together on matter

"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."

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Evangelia Marina Moreno headshot
Evangelia Moreno

Contracts and agreements lawyer

Experience

Rating:  7.0 (Very Good)

Associations

American Immigration Lawyers Association

Member

Education

2014

University of Pittsburgh School of Law

JD - Juris Doctor

2011

Duquesne University

BS - Bachelor of Science

Languages

Spanish

English

Greek

Activity

Avvo Rating

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  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution