Specialists in immigration procedures.
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33 2233 2835
33 2233 2835
Meet Our Attorney
- Emeka John Eni, Esq. - Managing Partner and Lead Consultant
- Karen M. Ocasio Vázquez - Abogado Americano
- Diego Perez - Abogado Mexicano
- Alejandro Corona - Abogado Mexicano
- José Torres - Abogado Español
Managing Partner and Lead Consultant
Emeka John Eni, Esq.
Oversees administration and client relations for Bicentennial Group LLC and Mexus Migración as the Representative Attorney concerning on Immigration procedures.
He graduated Magna Cum Laude from the American University, Washington College of Law in Washington, D.C. with a focus on United States Immigration Law, and Mexican and United States Corporate Law.
He served as a Senior Staffer of the American University International Law Review during his studies.
John's practice includes representing multinational companies on aspects of international corporate law, joint-ventures, foreign direct investment, cross-border transactions and immigration law.
In addition to his traditional practice, he is a professor of law at Mexico's Instituto Tecnólogico y de Estudios Superiores de Monterrey (Tec de Monterrey, Campus GDL), one of Mexico's highest ranking and renowned universities.
John began his career in the public sector, having been previously employed at the United States Department of Labor as an international trade analyst, and worked in the General Counsel’s Office of the United States Trade Representative within the White House’s Executive Office of the President. John has also worked within the United States Department of State's Bureau of Consular Affairs.
He is an active member of the New York Bar Association and is also fluent in English, Spanish and French.
American Attorney
Karen M. Ocasio Vázquez
With more than twenty years of experience in Immigration and Nationality Law, American attorney Karen M. Ocasio has been providing services to clients in Puerto Rico, the United States, and Mexico.
Attorney Karen M. Ocasio is an active member of the American Immigration Lawyers Association, as well as the Puerto Rico Bar Association and the American Bar Association. She is the current treasurer of the AILA-PR Chapter.
Areas of Expertise
- H-1B: Professionals in Specialty Occupations, Cooperative Research with the DOD, and Fashion Models of Distinguished Merit and Ability.
According to current regulations, a Specialty Occupation requires the theoretical and practical application of a body of highly specialized knowledge, and the attainment of at least a bachelor’s degree (or its equivalent) in the specific specialty as a minimum requirement for entry into the occupation in the United States.
- H-2A: Temporary Agricultural Workers
Allows U.S. employers who meet specific regulatory requirements to bring foreign nationals to the United States to fill temporary agricultural jobs.
- H-2B: Temporary Non-Agricultural Workers
Allows U.S. employers who meet specific regulatory requirements to bring foreign nationals to the United States to fill temporary non-agricultural jobs.
- L-1A: Intracompany Transferee – Executives or Managers
The process, broadly speaking, is as follows: The petitioning company in the United States files a petition with U.S. Citizenship and Immigration Services (USCIS) to obtain permission to temporarily transfer a foreign worker. Once approved, the petition is sent to a U.S. consulate where the foreign national can obtain the L-1 visa and enter the United States. If the foreign national is already in the U.S. under a different nonimmigrant visa, their status may be changed to L-1, and if they already hold an L-1 visa, an extension of stay may be requested.
- L-1B: Intracompany Transferee – Professionals with Specialized Knowledge
The process, broadly speaking, is as follows: The petitioning company in the United States files a petition with USCIS to obtain permission to temporarily transfer a foreign worker. Once approved, the petition is sent to a U.S. consulate where the foreign national can obtain the L-1 visa and enter the United States. If the foreign national is already in the U.S. under a different nonimmigrant visa, their status may be changed to L-1, and if they already hold an L-1 visa, an extension of stay may be requested.
- E-1: Treaty Traders
Allows a national of a treaty country — in this case, Mexico — to be admitted to the United States solely to engage in substantial international trade on their own behalf, conducting and/or generating trade between Mexico and the U.S.
- E-2: Treaty Investors
Allows a national of a treaty country — in this case, Mexico — to be admitted to the United States solely to develop and direct investments in a U.S. enterprise. It is important to note that the investment must be substantial.
- Labor Certification with DOL (PERM):
The U.S. Department of Labor’s Employment and Training Administration established a new labor certification program for foreign nationals with a permanent or indefinite job offer in the United States. This program is known as “Program Electronic Review Management” or PERM.
- Form I-140: Immigrant Petition for Alien Worker
Filing Form I-140 requires, in addition to the certification issued by the Department of Labor, evidence of the foreign worker’s professional qualifications, a certification of a permanent job offer from the employer, and proof that the employer can pay the prevailing wage for the specific position, among other requirements.
- TN Visa: Temporary Professionals under the United States-Mexico-Canada Agreement (USMCA)
This visa is very similar to the H-1B professional work visa, except there is no statutory cap as with the H visa. However, the TN visa is subject to Section 214(b) of the Immigration and Nationality Act (INA), meaning that the applicant must demonstrate an intent not to immigrate to the U.S., i.e., the foreign national does not intend to remain permanently in the U.S.
This visa requires that the activity to be performed by the foreign national be professional in nature. The USMCA regulation defines “professional level” as an activity that requires a bachelor’s degree or appropriate credentials demonstrating professional status. The regulation also specifies several professional categories, as well as the required education and/or experience for each.
The first requirement to apply for a TN visa is that the foreign national must have a job offer from a U.S. company or individual. The TN visa may also apply when a U.S. company has agreements with a company in Mexico and requires the individual to perform services in the U.S. A TN visa holder cannot work as a self-employed individual.
- Form I-485: Application to Register Permanent Residence or Adjust Status
This form is typically used to register a change in immigration status and/or apply for permanent residence. To file this form, the applicant must already be physically present in the United States; it is commonly known as the “Adjustment of Status” application.
Mexican Attorney
Diego Perez
Mexican attorney graduated from the Instituto Tecnológico y de Estudios Superiores de Occidente (ITESO).
Areas of Expertise
- TN Visa: Temporary Professionals under the United States-Mexico-Canada Agreement (USMCA).
- Attorney Diego Pérez coordinates the entire process together with Attorney Karen Ocasio. Internally, he supervises all matters related to the TN Visa application and follows up on the different requirements requested by Attorney Karen to ensure full project progress. Our legal team ensures that both INDIVIDUAL and CORPORATE clients feel comfortable and confident throughout the visa process, as communication between MEXUS and its clients flows efficiently and clearly.
- Various Legal Grounds of Inadmissibility such as:
- Crimes of Moral Turpitude - INA 212(a)(2)(A)(i)(I)
- Money Laundering - INA 212(a)(2)(I)
- Misrepresentation - INA 212(a)(6)(C)(i)
- Falsely Claiming Citizenship - INA 212(a)(6)(C)(ii)
- Smugglers - INA 212(a)(6)(E)
- Individuals Previously Removed - INA 212(a)(9)(A)
- Individuals Unlawfully Present - INA 212(a)(9)(B)
- Individuals Unlawfully Present After Previous Immigration Violation - INA 212(a)(9)(C)
We mention here the most frequent or common Legal Grounds of Inadmissibility, including deportations from the United States. However, if your situation is different from those listed above, please schedule a consultation with Attorney Diego Perez.
Attorney Diego Perez’s experience with these inadmissibility cases has been applied in NON-IMMIGRANT processes, where in each situation we have achieved many positive outcomes — for individuals who were once formally removed or deported, or who lived irregularly in the United States for a period of time, among other circumstances.
A professional consultation with Attorney Diego Perez is an excellent option for individuals who have had any prior issues in the United States and wish to confirm what steps to take for NON-IMMIGRANT visa applications.
Mexican Attorney
Alejandro Corona
Mexican attorney graduated from the Instituto Tecnológico y de Estudios Superiores de Monterrey (TEC de Monterrey).
Areas of Expertise
- U.S. Residency through Family Relationship (Form I-130) — whether as a U.S. Citizen or a Lawful Permanent Resident.
- Fiancé Visa (Form I-129F): We recommend scheduling a consultation with Attorney Corona only if you have been in a relationship with your fiancé(e) for more than two years.
- Processes before the NVC: Applicable to cases that were filed many years ago or cases already in an advanced stage that require guidance to continue the U.S. Residency process.
- Various Legal Grounds of Inadmissibility related to filing or processing Form I-212 and/or I-601 with USCIS for Immigrant Visa purposes:
-
- Crimes of Moral Turpitude - INA 212(a)(2)(A)(i)(I)
- Misrepresentation - INA 212(a)(6)(C)(i)
- Smugglers - INA 212(a)(6)(E)
- Individuals Previously Removed - INA 212(a)(9)(A)
- Individuals Unlawfully Present - INA 212(a)(9)(B)
- Individuals Unlawfully Present After Previous Immigration Violation - INA 212(a)(9)(C)
We mention here the most frequent or common Legal Grounds of Inadmissibility, including deportations from the United States. However, if your situation is different from those listed above, please schedule a consultation with Attorney Alejandro Corona.
Attorney Alejandro Corona’s experience with these inadmissibility issues has been applied in IMMIGRANT VISA processes, where in many of these situations we have achieved positive outcomes — for individuals who were once formally removed or deported, or who lived irregularly in the United States, among many others.
Affidavit of Support (Form I-864): Knowledge in this area is crucial, as part of the U.S. Residency process involves submitting proof that the applicant will not become a public charge, supported by appropriate financial documentation.
Specialized Immigration Consultations: If the type of legal advice you need is not described above, please contact us to confirm whether we can provide the service you require.
Spanish Attorney
José Torres
José Torres is a licensed attorney in Spain, educated at the Universidad Autónoma de Madrid, and specialized in immigration law. His personal experience as a migrant, combined with years of professional practice, allows him to offer a human and effective approach when assisting individuals and companies with immigration procedures involving Spain.
Extensive experience in Spanish Immigration matters for individuals within and outside Spain, students, as well as companies and international mobility cases.
