Important Updates
Important Updates
November 7, 2025 | 🌐Minimum Salary Changes Announced
November 7, 2025 | Canada Canada: New Measures Prioritize Graduate and Doctoral Student Recruitment
November 7, 2025 | CanadaCanada: Ontario Implements Key Reforms to the Immigrant Nominee Program
November 7, 2025 | CanadaCanada: Quebec’s 2026–2029 Immigration Plan Announced, with Key Program Measures and Updates
November 7, 2025 | Mexico, PeruMexico/Peru: Suspension of Diplomatic Ties May Affect Immigration Processing
November 7, 2025 | 🌐Minimum Salary Changes Announced
November 7, 2025 | Canada Canada: New Measures Prioritize Graduate and Doctoral Student Recruitment
November 7, 2025 | CanadaCanada: Ontario Implements Key Reforms to the Immigrant Nominee Program
November 7, 2025 | CanadaCanada: Quebec’s 2026–2029 Immigration Plan Announced, with Key Program Measures and Updates
November 7, 2025 | Mexico, PeruMexico/Peru: Suspension of Diplomatic Ties May Affect Immigration Processing
November 7, 2025 | 🌐Minimum Salary Changes Announced
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John Perry Warren

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Associate

John Perry Warren

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  • United StatesUnited States

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[email protected]

T:+1 312 985 9191

F:+1 312 346 1970

Chicago, IL

Fragomen, Del Rey, Bernsen & Loewy, LLP

333 W Wacker Dr 15th Floor

Chicago IL 60606

United States

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Languages

  • English
  • Mandarin Chinese

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Email

[email protected]

T:+1 312 985 9191

F:+1 312 346 1970

Chicago, IL

Fragomen, Del Rey, Bernsen & Loewy, LLP

333 W Wacker Dr 15th Floor

Chicago IL 60606

United States

Get in touch

Languages

  • English
  • Mandarin Chinese

Contact information

Email

[email protected]

T:+1 312 985 9191

F:+1 312 346 1970

Chicago, IL

Fragomen, Del Rey, Bernsen & Loewy, LLP

333 W Wacker Dr 15th Floor

Chicago IL 60606

United States

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John is an Associate at Fragomen’s Chicago office, where he partners with small companies to large Fortune 500 corporations on a diverse array of immigration matters, including nonimmigrant visas, immigrant visas, immigration compliance and foreign national employee retention. He advises and files nonimmigrant visa petitions including H-1Bs, H-1B CAP, L-1A, L-1B, TN, E-3, E-2, J-1, O-1A, F-1, B-1/2 and all respective dependent applications; immigrant visa processes including PERM labor certification (9141, running recruitment, filing 9089, audits, I-140/AOS) and maintaining batch PERM programs for corporate clients; as well as consults and files petitions for EB-1A, EB-1B, EB-1C, O-1A, National Interest Waivers (NIWs), corporate LZ filings (initials, amendments), 212(e) waivers, FOIA requests and AAO appeals. He also advises on and files I-130 applications, both with USCIS and applications for consular processing abroad.

John has provided pro bono support at the South Texas Family Residential Center in Dilley, Texas to women and children preparing for credible fear interviews (CFIs) for asylum proceedings and has experience preparing and filing U visa applications in partnership with the National Immigrant Justice Center (NIJC). He has also provided I-821 Temporary Protected Status (TPS) and I-765 Employment Authorization Document (EAD) pro bono support services for migrants relocated to Chicago through The Resurrection Project (TRJ).

Before law school, John was a United States Peace Corps volunteer in Chongqing, China for over two years teaching English, translation and interpreting classes to university students.

During law school, John started working with Fragomen as a Law Clerk and later a Legal Writer where he focused on complex drafting petitions including EB-1A, EB-1B, O-1A, NIWs and responses to Requests for Evidence (RFEs) or Notices of Intent to Deny (NOIDs) for nonimmigrant and immigrant visa applications.

John speaks English and is proficient in Mandarin Chinese.

During law school, John started working with Fragomen as a Law Clerk and later a Legal Writer where he focused on complex drafting petitions including EB-1A, EB-1B, O-1A, NIWs and responses to Requests for Evidence (RFEs) or Notices of Intent to Deny (NOIDs) for nonimmigrant and immigrant visa applications.

John speaks English and is proficient in Mandarin Chinese.

Education

  • Chicago-Kent College of Law, J.D., 2021
  • University of Minnesota - Twin Cities, B.A., 2016

More from John

Admissions

Bar Admissions: Illinois

Practice Limited to Federal Immigration & Nationality Law

Awards

Listed among Super Lawyers Illinois Rising Stars – Immigration, 2024

Professional accomplishments

Member, American Immigration Lawyers Association

Member, Chicago Bar Association

Member, Chicago’s LGBTQ+ Bar Association (LAGBAC)

Publications and lectures

Speaker, “ABC’s of LGBTQ+ Global Mobility.” Chicago Bar Association, 30 June 2023.

Country / Territory

  • United StatesUnited States

Get in touch

Languages

  • English
  • Mandarin Chinese

Contact information

Email

[email protected]

T:+1 312 985 9191

F:+1 312 346 1970

Chicago, IL

Fragomen, Del Rey, Bernsen & Loewy, LLP

333 W Wacker Dr 15th Floor

Chicago IL 60606

United States

Share

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Share

  • Twitter
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Get in touch

Languages

  • English
  • Mandarin Chinese

Contact information

Email

[email protected]

T:+1 312 985 9191

F:+1 312 346 1970

Chicago, IL

Fragomen, Del Rey, Bernsen & Loewy, LLP

333 W Wacker Dr 15th Floor

Chicago IL 60606

United States

Share

  • Twitter
  • Facebook
  • LinkedIn

Share

  • Twitter
  • Facebook
  • LinkedIn

Get in touch

Languages

  • English
  • Mandarin Chinese

Contact information

Email

[email protected]

T:+1 312 985 9191

F:+1 312 346 1970

Chicago, IL

Fragomen, Del Rey, Bernsen & Loewy, LLP

333 W Wacker Dr 15th Floor

Chicago IL 60606

United States

Share

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  • Facebook
  • LinkedIn

Share

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Explore more at Fragomen

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Learn more

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Fragomen Wins Altair Global’s 2025 Super Star Award for Humanitarian Commitment

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Fragomen Ranked in 2026 Edition of "Best Law Firms in the United States" by The Best Lawyers

Fragomen is recognized at the National Tier 1 level for Immigration Law in the 2026 edition of The Best Law Firms – United States, with 15 offices across the country also recognized for their excellence in immigration law.

Learn more

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Fragomen Wins Altair Global’s 2025 Super Star Award for Humanitarian Commitment

Fragomen receives Altair Global’s 2025 Super Star Award for Humanitarian Commitment, honoring the firm’s leadership in advancing humanitarian mobility initiatives.

Learn more

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Partner Rick Lamanna discusses Canada’s 2025 federal budget and its significant shift in immigration policy including new limits on international student permits and temporary residents.

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Fragomen Cited in House of Lords Report on the Future of the UK Space Economy

Fragomen is cited in the UK House of Lords’ landmark report, “The Space Economy: Act Now or Lose Out,” published on 4 November by the UK Engagement with Space Committee.

Learn more

Blog post

Georgia Immigration Reform 2025: New Work Permit Rules for Foreign Nationals

Manager Zaur Gasimov discusses Georgia’s new immigration and labour-migration reforms introducing mandatory work permits, stricter employer compliance requirements and increased penalties for non-compliance.

Learn more

Awards

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Senior Associate Agata Danuta Richardson is recognized with a prestigious Pro Bono Publico Award by the Casa Cornelia Law Center.

Learn more

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Learn more

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Senior Manager William Diaz outlines the US visa options available to the games industry for bringing international talent to the United States, including O-1, L-1 and E-2.

Learn more

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Associate Chloe Evans outlines eligibility criteria for individuals seeking British citizenship based on ancestral ties.

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