This guide covers 10 immigration attorneys and firms serving Houston, Harris County, Katy, Sugar Land, and the rest of the Greater Houston area, from solo immigration practices to one of the country’s largest corporate immigration firms. We evaluated each on board certification in Immigration and Nationality Law by the Texas Board of Legal Specialization, years devoted to immigration law, depth across family-based petitions, employment visas, citizenship, humanitarian relief, and deportation defense, languages spoken by attorneys and staff, and whether immigration is the firm’s exclusive focus or one practice area among several.
When comparing options, ask three practical questions. First, does the attorney handle your specific type of case, such as a marriage green card, an H-1B or PERM filing, DACA renewal, or a removal case before the Houston immigration courts, and how many of those cases do they file each year? Second, will you work directly with the attorney, and do they or their staff speak your language? Third, if you have any criminal history or past immigration violations, does the firm evaluate those issues before filing, since a mistake can trigger removal proceedings?
Here is the list of best Houston immigration attorneys:
1. Serrano Law Firm PLLC
- Attorney/Key Figure: Sam Serrano, Founding Attorney
- Headquarters: 13201 Northwest Fwy., Suite 588, Houston, TX 77040
- Phone: (713) 222-2834
- Website: serranopllc.com
- Practice Areas: Immigration Law exclusively (Family-Based Immigration, Employment-Based Immigration, Green Cards, Naturalization and Citizenship, DACA, Temporary Protected Status, Removal of Conditions, Cancellation of Removal, Immigration Bonds, USCIS FOIA Requests)
- Firm Size: Immigration-only Houston firm founded in 2006; founder has nearly 20 years of immigration experience, with clients from more than 35 states and 50 countries
- Social Profiles: Facebook, Instagram, X, YouTube
About the Firm: Sam Serrano has spent nearly 20 years handling immigration cases, including employment-based visas and residency, family-based petitions and permanent residency, naturalization, removal of conditions, and removal proceedings. Since founding Serrano Law Firm in 2006, he has represented clients from more than 35 states and 50 countries from the firm’s office on the Northwest Freeway, and the practice is devoted entirely to immigration law.
The firm takes a direct, hands-on approach with every client and backs it with a written client pledge committing to listen carefully, communicate with candor and honesty, and treat each client with respect. It handles the full range of cases Houston families face, from marriage-based green cards and DACA renewals to immigration bonds and cancellation of removal for people already in court. The firm offers free consultations for family, employment, and DACA cases, provides service in English and Spanish, and keeps its phones open 24/7 for urgent situations such as a detention.
2. Quan Law Group, PLLC
- Attorney/Key Figure: Gordon J. Quan, Jarred J. Slater, Matthew G. Thompson, and Kristen Quan Hammill, Partners
- Headquarters: 5444 Westheimer Rd., Suite 1700, Houston, TX 77056
- Phone: (713) 625-9200
- Website: quanlaw.com
- Practice Areas: Immigration Law exclusively (Business and Employment-Based Immigration, Family-Based Immigration, Citizenship and Naturalization, Humanitarian Immigration, Asylum, Visas)
- Firm Size: Immigration-only firm with 11 attorneys and more than 40 years of Texas immigration practice; founding partners board certified in Immigration and Nationality Law
About the Firm: Quan Law Group is a full-service immigration firm built on more than 40 years of Texas immigration practice, and all of its founding partners are board certified in Immigration and Nationality Law by the Texas Board of Legal Specialization. Its team of 11 attorneys handles business and employment immigration, family petitions, naturalization, and humanitarian cases.
The firm has held a First-Tier ranking for Immigration Law in Houston from Best Law Firms since 2015 and is recognized by Best Lawyers, and its attorneys have earned Super Lawyers and Rising Star designations. Its multi-attorney bench is well suited to employers with ongoing visa needs. As a larger firm, clients may work with an associate rather than a founding partner on routine filings.
3. Foster LLP
- Attorney/Key Figure: Charles Foster, Founder and Chairman
- Headquarters: 3 Greenway Plaza, Suite 800, Houston, TX 77046 (additional office in Austin; consultations by appointment in Mexico City, San Salvador, Beijing, Guangzhou, and Ho Chi Minh City)
- Phone: (713) 229-8733
- Website: fosterglobal.com
- Practice Areas: Immigration Law (H-1B and Temporary Work Visas, Employer-Sponsored Green Cards, Global Immigration, EB-5 Investor Visas, I-9 Compliance, Naturalization, Removal Defense)
- Firm Size: Large immigration firm operating for more than 45 years; ranked by The Legal 500 for immigration
About the Firm: Foster LLP has practiced immigration law for more than 45 years and is led by founder and chairman Charles Foster from its headquarters at Three Greenway Plaza. The firm is ranked by The Legal 500 for immigration and has attorneys focused on employment-based immigration, compliance, and corporate immigration strategy.
Its strength is employer immigration at scale, including H-1B programs, employer-sponsored green cards, EB-5 investor cases, and global mobility for multinational companies, with consultation access in Latin America and Asia. Its corporate focus and size make it less of a fit for individuals with a single family-based case who want a small-firm experience.
4. Davis & Associates (GLD Law)
- Attorney/Key Figure: Garry Davis, Founding Attorney
- Headquarters: 6220 Westpark Dr., Suite 110, Houston, TX 77057 (additional office in Dallas)
- Phone: (832) 742-0066
- Website: gldlaw.com
- Practice Areas: Immigration Law (Deportation Defense, Family-Sponsored Immigration, Employment-Sponsored Immigration, H-1B and Temporary Visas, EB-5 Investor Visas, Employment-Based Green Cards, Naturalization, Waivers, Appeals, Writs of Habeas Corpus and Mandamus, Employer Compliance)
- Firm Size: Eight-attorney Texas immigration firm with offices in Houston and Dallas; founder board certified in Immigration and Nationality Law
About the Firm: Garry Davis is board certified in Immigration and Nationality Law by the Texas Board of Legal Specialization and leads an eight-attorney firm with offices in Houston and Dallas. Its multilingual staff handles family and employment immigration, EB-5 investor visas, naturalization, and deportation defense.
The firm also files federal court actions, including writs of habeas corpus for detained clients and writs of mandamus to force action on applications stuck in long delays, which many smaller practices do not handle. With attorneys split between Houston and Dallas, clients may work with different members of the team over the course of a case.
5. Vega & Associates
- Attorney/Key Figure: Adan G. Vega, Founding Attorney
- Headquarters: 122 Tuam St., Houston, TX 77006
- Phone: (713) 527-9606
- Website: adanvega.com
- Practice Areas: Family Immigration (Marriage Green Cards, K-1 Fiancé Visas, Removal of Conditions, Adjustment of Status, Waivers), Business Immigration (H-1B, L-1, TN, E-1/E-2, PERM, EB-1, EB-5, H-2A/H-2B), Individual Immigration (Citizenship, VAWA and U Visas, Asylum, Deportation Defense and Appeals)
- Firm Size: Boutique immigration practice; founder board certified in immigration law with more than 45 years of practice
About the Firm: Adan G. Vega is board certified in immigration law by the Texas Board of Legal Specialization and has practiced law for more than 45 years. He was selected to Texas Super Lawyers from 2004 to 2014, has been named a Houston “Top Lawyer” in immigration and nationality law by H Texas magazine, and holds a 10 Avvo rating and a 2019 Avvo Clients’ Choice award.
His practice covers family, business, and individual immigration, including VAWA and U visas for crime victims, national interest waivers, and appeals. He serves clients in English and Spanish. As a boutique practice, it has a smaller team than the multi-attorney firms.
6. Cano Immigration, PLLC
- Attorney/Key Figure: Olsa Alikaj-Cano, Founding Attorney
- Headquarters: 12141 Wickchester Ln., Suite 600, Houston, TX 77079
- Phone: (832) 288-2727
- Website: canoimmigration.com
- Practice Areas: Immigration Law exclusively (Family Petitions, Permanent Residency, Citizenship, Consular Processing, Asylum and Humanitarian Visas, Deportation and Removal Defense, Appeals, DACA, ICE and CBP Issues, Waivers, Crimmigration, Employment and Investor Visas, I-9 Compliance, FOIA)
- Firm Size: West Houston immigration boutique; founder board certified in Immigration and Nationality Law
About the Firm: Olsa Alikaj-Cano is board certified in Immigration and Nationality Law by the Texas Board of Legal Specialization and founded Cano Immigration, which focuses entirely on immigration. She is recognized by Super Lawyers and litigates in federal district courts, circuit courts, and beyond when a case requires it.
The firm’s crimmigration practice addresses the immigration consequences of criminal charges, and it handles ICE and CBP issues, appeals, and waivers. Its website is available in English, Spanish, and Albanian, and it offers Saturday morning hours. As a small boutique, it has fewer attorneys than larger firms.
7. Trillos Ballerini Law Firm, P.C.
- Attorney/Key Figure: Beatriz Trillos Ballerini, Founding Attorney
- Headquarters: 3000 Weslayan St., Suite 210, Houston, TX 77027
- Phone: (713) 739-7272
- Website: tbvisas.com
- Practice Areas: Employment-Based Permanent Residency (EB-1 Extraordinary Ability, EB-2 National Interest Waiver, PERM Labor Certification), Nonimmigrant Visas (O-1, E-1 and E-2 Treaty Trader and Investor, L-1, H-1B, TN, E-3), Consular Processing, Citizenship
- Firm Size: Immigration boutique founded in 2006; recognized as a Best Law Firms 2026 regional tier 1 firm
About the Firm: Beatriz Trillos Ballerini founded her firm in 2006 and focuses on business and talent-based immigration, including EB-1 extraordinary ability petitions, EB-2 national interest waivers, O-1 visas, and E-2 investor visas. She is a member of the American Immigration Lawyers Association, holds a 10.0 Avvo rating, and her firm is recognized by Super Lawyers, Best Lawyers, and Best Law Firms.
The firm is a strong fit for researchers, executives, artists, and entrepreneurs, and its website is available in English, Spanish, and Italian. Its practice is concentrated on employment and investor cases, so families seeking deportation defense may be better served by a removal-focused firm.
8. Galaviz Law Firm, PLLC
- Attorney/Key Figure: Abraham J. Galaviz, Founding Attorney
- Headquarters: 9950 Westpark Dr., Suite 606, Houston, TX 77063
- Phone: (713) 597-5642
- Website: galavizlaw.com
- Practice Areas: Removal Defense (Airport Detention of Permanent Residents, Asylum, Immigration Bond Hearings, Cancellation of Removal, Adjustment of Status in Court, 212(h) Waivers), Family-Based Immigration (Adjustment of Status, Consular Processing, Waivers, Citizenship, DACA), Criminal Defense
- Firm Size: Houston immigration and criminal defense practice founded in 2013
About the Firm: Abraham J. Galaviz founded his firm in 2013 and concentrates on removal defense and family-based immigration. His removal practice covers bond hearings, asylum, cancellation of removal, 212(h) waivers, and the detention of lawful permanent residents at the airport, a situation that requires immediate action.
His criminal defense practice is useful for noncitizens facing charges that could affect their immigration status, and the firm offers service in Spanish. As a solo-led practice, it has a smaller team than the multi-attorney firms on this list.
9. Rodriguez Law Office
- Attorney/Key Figure: Rebekah Rodriguez, Founding Attorney
- Headquarters: 1406 Heights Blvd., Houston, TX 77008
- Phone: (888) 240-7297
- Website: rlo-immigration.com
- Practice Areas: Immigration Law (Citizenship, Asylum, Removal and Deportation Defense, Military Immigration, Employment and Family-Based Green Cards, Temporary Visas, Criminal Defense for Immigrants)
- Firm Size: Houston Heights immigration firm whose team includes two former Judge Advocate General’s Corps attorneys and a former immigration defense professor
About the Firm: Rodriguez Law Office is a Houston Heights immigration practice led by Rebekah Rodriguez. Two of the firm’s attorneys served in the Judge Advocate General’s Corps, and another taught immigration defense, a background that supports both its removal defense work and its military immigration practice for service members and their families.
The firm has been recognized twice by the Pro Bono College of the State Bar of Texas for outstanding service, and it offers Spanish-language service. Its website does not detail individual attorney credentials beyond these roles.
10. Galer Law Firm, PLLC
- Attorney/Key Figure: Diego F. Galer, Managing Attorney
- Headquarters: 24542 Kingsland Blvd., Katy, TX 77494
- Phone: (832) 365-0707
- Website: galerlawfirm.com
- Practice Areas: Immigrant Petitions (EB-1, EB-2 NIW, EB-3 PERM, EB-5, Family Petitions), Nonimmigrant Visas (E-1, E-2, E-3, F-1, H-1B, H-2B, J-1, L-1A, L-1B, O-1, TN), Citizenship
- Firm Size: Immigration firm with 17 years of experience; managing attorney is an AILA member with corporate immigration experience
About the Firm: Diego F. Galer leads an immigration firm with 17 years of experience, with a focus on business and investor immigration, including EB-5 immigrant investor petitions, E-2 investor visas, L-1 intracompany transfers, and EB-1 and EB-2 NIW petitions. He is a member of the American Immigration Lawyers Association, and his website is published primarily in Spanish, which suits Latin American investors and professionals.
The firm also handles family petitions and citizenship. Its office is in Katy, west of Houston, which is convenient for west-side residents but a longer trip for clients in central or north Houston.
Houston, TX Immigration Law Resources
- USCIS Houston Field Office: Handles green card and naturalization interviews and other in-person services for the Houston area.
- Houston Immigration Courts (EOIR): Hear removal proceedings for non-detained and detained respondents in the Houston area.
- ICE Houston Field Office: Handles enforcement, detention, and check-ins for the Houston region.
- Houston Asylum Office: Conducts affirmative asylum interviews for applicants in Texas and surrounding states.
- Texas Board of Legal Specialization: Maintains a searchable list of attorneys board certified in Immigration and Nationality Law.
- American Immigration Lawyers Association (AILA) Texas Chapter: Professional association whose member directory helps residents find immigration attorneys.
Frequently Asked Questions
What does board certification in immigration law mean in Texas?
The Texas Board of Legal Specialization certifies attorneys who have substantial experience in immigration law, pass a written exam, and receive peer and judicial references. Board-certified immigration attorneys in Houston include Garry Davis of Davis & Associates, Adan G. Vega, Olsa Alikaj-Cano of Cano Immigration, and the founding partners of Quan Law Group.
How long does a marriage-based green card take in Houston?
Timelines vary with USCIS processing times and whether the applicant is in the U.S. or abroad. Adjustment of status cases include a biometrics appointment and often an interview at the Houston Field Office, while consular processing cases finish at a U.S. consulate abroad. Family-focused firms such as Serrano Law Firm and Galaviz Law Firm handle both paths.
What should I do if a family member is detained by ICE in Houston?
Contact an immigration attorney immediately. The attorney can determine whether the person is eligible for a bond hearing, locate them in detention, and identify defenses or relief. Removal defense practices such as Davis & Associates, which also files habeas corpus petitions, and Rodriguez Law Office handle detention cases.
Can a criminal charge affect my immigration status?
Yes. Many criminal convictions, and some charges even without a conviction, can make a noncitizen deportable or ineligible for a green card or citizenship. Anyone who is not a U.S. citizen should consult an immigration attorney before pleading guilty. Firms such as Cano Immigration and Galaviz Law Firm handle crimmigration issues.
Which firms handle employment and investor visas in Houston?
Houston’s energy, medical, and technology sectors create heavy demand for H-1B, L-1, O-1, and employment-based green cards. Large firms such as Foster LLP and Quan Law Group handle employer programs, while boutiques such as Trillos Ballerini Law Firm and Galer Law Firm focus on extraordinary ability petitions, national interest waivers, and E-2 and EB-5 investor cases.
How do I avoid immigration scams?
Only licensed attorneys and representatives accredited by the Department of Justice can give immigration legal advice. “Notarios” and immigration consultants cannot legally represent you, and filing errors can lead to denials or removal proceedings. Licensed Texas attorneys appear in the State Bar of Texas directory, and board-certified immigration attorneys are listed by the Texas Board of Legal Specialization.
Disclaimer: For informational and educational use only-this content does not constitute legal advice or an endorsement of any specific attorney. Immigration laws, policies, and attorney credentials change over time. Always independently verify credentials (including state bar membership and authorization to practice immigration law) and consult qualified legal counsel before retaining representation.