About BBA Immigration
Helping You Navigate Every Step of Working in the United States
BBA Immigration (Bustillos, Bello & Associates PLLC) is a U.S. immigration law firm dedicated to employment-based green cards. We make the path to living and working in America clear, achievable, and human.
Our Story
BBA Immigration was founded on a simple belief: that skilled workers and the employers who need them deserve a clear, honest path through the U.S. immigration system.
Too many people are discouraged by complexity, conflicting information, and uncertainty about where to begin. We created BBA Immigration to change that.
We help professionals, researchers and physicians earn a green card without an employer sponsor, and people at the top of their field qualify for an extraordinary-ability green card or an O-1 work visa.
Multinational managers and executives, founders and investors rely on us to build their business in the United States, whether that means transferring from a company abroad, launching a new venture, or investing for a green card.
We help Canadian and Mexican professionals work in the U.S. with TN visas, nurses and physical therapists on the fast-track green card, and employers who sponsor the skilled workers they need. We also help keep families together. From the first filing to the final green card, we handle the legal side so you can focus on your future.
BBA's partners, Diego Bustillos and Adriana Bello, bring over twenty years of combined legal experience, trained at major international law firms. Partners are involved in every file. We commit to one guarantee: if you review your final filing and are not impressed by the work product, we rework it.
Firm Highlights
- Green card without a sponsor (EB-2 NIW)
- Extraordinary ability (EB-1A, O-1)
- Multinational managers (L-1)
- Founders & investors (E-2, EB-5)
- Canadian & Mexican professionals (TN)
- Nurses & physical therapists (Schedule A)
- Employer sponsorship (EB-3, PERM, H-1B)
- Marriage & family
Meet the Partners

Adriana Bello
Founding Partner
Adriana focuses on employer sponsorship and Schedule A pathways, helping companies and healthcare professionals navigate PERM, I-140, and adjustment of status efficiently. She is known for her clear communication and strategic approach to cases.

Diego Bustillos
Founding Partner
Diego leads the firm's employment-based immigration practice, guiding skilled workers, professionals, and families through every stage of the green card process with clarity and care. He brings deep expertise in EB-2 NIW, EB-3, and complex employment cases.
Why Choose BBA Immigration
Immigrant-Founded
Our partners and many associates are immigrants ourselves. We understand the journey because we've lived it.
Legal Excellence
Deep expertise in employment-based immigration — from employer sponsorship to self-petitions, and every step in between.
Bilingual Team
Full services in English and Spanish. Our team includes native speakers from across the Americas.
Nationwide Service
Immigration law is federal — we represent clients in all 50 states and abroad.
Clear Communication
We explain every step clearly. No legal jargon, no surprises. You'll always know where your case stands.
Results-Driven
We don't just file applications — we build strong cases through independent research and strategic evidence gathering.
From South America to Texas and Beyond
BBA Immigration helps with U.S. immigration from around the world, including Colombia, Chile, Argentina, and the rest of South America. Our Houston immigration attorneys hail from Argentina, Venezuela, and San Antonio, Texas; we are truly a multinational law firm in that sense, bridging the gap and facilitating immigration exchanges between Texas and the Latin world.
We offer services in both English and Spanish and are equipped to address all your immigration legal needs. Call any time to discuss your needs and find out how we can help. BBA Immigration is eager to hear from you and become your trusted immigration law firm.
For Employers
Many of BBA's employer clients begin with one or two employees who found us first. If your company has employees on temporary work visas, or if you are not certain of the status of your workforce, a proactive conversation now may prevent a crisis that costs significantly more.
Request a consultation. We will review your workforce situation and tell you exactly what protection looks like for your company.
Request a Consultation