Your Trusted Partner in U.S. Business Immigration

For over 65 years, Oltarsh & Associates, P.C. has been a trusted partner for businesses seeking to expand their workforce with top international talent.

In today’s dynamic global economy, accessing a diverse pool of skilled professionals is essential for growth and innovation. U.S. immigration law provides pathways for companies to hire international employees, but the complex regulatory landscape can be challenging to navigate. At Oltarsh & Associates, P.C., our experienced immigration lawyers are here to guide your business through every step of the U.S. business immigration process, minimizing risks and maximizing the success of each application.

Whether you are seeking temporary work visas for specialized talent or a permanent solution through Green Cards for employees, our team has the expertise to make the process smooth and efficient. We serve companies of all sizes, from start-ups to multinational corporations, and are dedicated to your success in securing the international talent that drives your business forward.

The Importance of Business Immigration for U.S. Companies

The success of any business often depends on having the right talent. For many U.S. companies, this means hiring skilled professionals from around the world to fill specialized roles. Business immigration allows companies to meet workforce demands, bring fresh perspectives, and drive innovation.

However, the U.S. immigration system is complex, involving multiple visa categories, stringent application processes, and often long wait times. Missteps can lead to application rejections, delays, or even legal consequences for employers. Partnering with an experienced immigration law firm can make a world of difference, providing peace of mind as you expand your workforce.

Nonimmigrant Work Visas for Temporary Employment

Nonimmigrant work visas allow companies to hire foreign nationals for specific, temporary employment roles. Each visa type is designated for a particular purpose or category of work, making it essential to choose the right one for each hire. Oltarsh & Associates, P.C. can assist you in selecting and applying for the ideal visa for your needs.

  • B-1/B-2 Visitor Visas: Primarily used for business visitors who need to conduct short-term activities such as attending meetings, negotiating contracts, or attending conferences. The B-1 visa allows for business engagements but not direct employment in the U.S.
  • E-1 Treaty Trader and E-2 Treaty Investor Visas: These visas support individuals and businesses from treaty countries who wish to engage in substantial trade or investment within the U.S. Perfect for entrepreneurs, investors, and companies with significant international trade ties.
  • H-1B Specialty Occupation Visas: A popular choice for U.S. companies seeking highly skilled professionals in specialized fields such as technology, engineering, finance, and healthcare. The H-1B visa requires a job that typically necessitates a bachelor’s degree or higher.
  • L-1 Intracompany Transferee Visas: Designed for employees transferring from an overseas office to a U.S. branch of the same company. This visa supports leadership roles, executives, and employees with specialized knowledge.
  • O-1 Extraordinary Ability Visas: Reserved for individuals with exceptional talent in fields such as science, arts, education, and business. The O-1 visa is an excellent choice for distinguished professionals and thought leaders.
  • TN NAFTA Professional Visas: Available to Canadian and Mexican citizens in certain professions under the U.S.-Mexico-Canada Agreement (USMCA). This visa offers a streamlined process and is available for specific professional fields.

Employment-Based Immigrant Visas (Green Cards)

Employment-based green cards provide a pathway to permanent residency, allowing valued employees to remain in the U.S. indefinitely. These visas are ideal for companies looking to retain top international talent on a long-term basis.

  • EB-1 Priority Workers: For individuals with extraordinary abilities in their fields, outstanding professors or researchers, and executives and managers from multinational companies. These applicants typically have notable achievements and receive priority processing.
  • EB-2 Professionals with Advanced Degrees or Exceptional Ability: Suitable for professionals with advanced degrees or exceptional abilities in the sciences, arts, or business. This category requires a permanent job offer and, in many cases, labor certification.
  • EB-3 Skilled Workers, Professionals, and Other Workers: Open to professionals with bachelor’s degrees, skilled workers with at least two years of experience, and unskilled workers for certain positions. The EB-3 is often used for positions where a job shortage exists.
  • EB-5 Immigrant Investors: For foreign investors who commit substantial capital to U.S.-based enterprises and create at least 10 full-time jobs for American workers. This visa is especially beneficial for entrepreneurs and investors looking to contribute to the U.S. economy.

Compliance and Employment Verification Services

Staying compliant with U.S. immigration regulations is essential for all companies, regardless of size. Employment verification services like I-9 compliance help ensure that each employee has been legally verified to work in the U.S., avoiding costly penalties and legal risks. Our compliance and verification services provide comprehensive support to help your organization adhere to federal requirements.

  • I-9 Compliance and Audits: Form I-9 verification is a mandatory process that ensures all employees are legally authorized to work in the U.S. This process must be documented accurately, as non-compliance can lead to severe penalties. Our team conducts proactive audits and training for your HR department, ensuring your I-9 process remains error-free and up-to-date.

  • E-Verify Guidance: E-Verify is an electronic verification system that compares I-9 information against government databases. Some employers, especially federal contractors, are required to use E-Verify to confirm employment eligibility. We guide your team through E-Verify requirements, setting up protocols for ongoing compliance, and handling any specific challenges you might face.

What our Clients say

Reynaldo M. profile picture
Reynaldo M.
05:27 03 Jan 26
My name is Reynaldo Morelos, and I want to thank Jennifer Oltarsh and her father, whom I had the pleasure of meeting. I still remember his advice when I went to see him about my situation, and he told me he would accept my case. I also want to thank the woman who translated for me; she was always so kind and smiling. Thank you to your entire professional team. Thank you again for making my dream come true by seeing my parents and siblings after 20 years apart. My future will change thanks to your help, and also to my wife, who has always been there for me, and my two children, thank God. God bless you and grant you good health, and may you continue helping many people. 100% recommended.
Thank you so much.
Patricia M. profile picture
Patricia M.
05:06 03 Jan 26
On behalf of my family and I would like to thank Jennifer Oltarsh and associates for the outstanding work they did on working on my husband case (I-130). The case started on March 2019. Her team was very attentive and dedicated to his case. I couldn't have asked for more. Thank you for the professionalism I highly recommend Jennifer and her wonderful staff, they are just amazing, they help us in every step of my husband immigration process with professionalism, experience and care. August of 2025 my husband received his consular appointment at U.S. Consulate General in Ciudad Juárez and on October 14, 2025 his case was approved. One week after returning from Mexico he received his green card. We are very satisfied with the whole team of Oltarsh and Associates. THANK YOU and Happy New Year.
Celine D. profile picture
Celine D.
15:10 23 Dec 25
Two words "THE BEST"
Segundo G. profile picture
Segundo G.
20:24 25 Nov 25
I want to thank Jennifer Oltarsh and Associates, for making my dream come true, I highly recommend Oltarsh immigration attorney, the Best Lawyers, they know the Law, i appreciate you all Oltarsh and Associates, Thank you.
Pradeep N. profile picture
Pradeep N.
14:47 27 Oct 25
Jenifer Oltrash Knows the LAW.

When me and my wife started our journey to file for our marriage based immigration case we knew it would be difficult to get my AOS in the states as my story had a lot of twist. I remember there was a time when no one in Florida would take my case and would tell me to go home instead of hearing me out.
The lawyers who were ready to listen would give their quote and fees first and the link to pay before I even start my story.

We came across Jenifer Oltrash and the only one who wanted to hear my case and my side of the story.
From the first minute we felt comfortable taking to her and we thought she was the right choice for us.
And before even taking about the fees and everything she said she would only take our case if she thinks she can help us.

She asked for details previously no other lawyer in the states asked us and believe me we did called a lot of lawyers lol.
We started our journey and it was one of the best decisions my wife took for me to hire Jennifer as our lawyer.
Before I interviewed I was briefed about and those were the exact questions asked in my interview. I was surprised as anyone and I felt confident walking out of our interview in December 2024.
February 2025 my I-130 was approved and March 2025 my I-485 was denied for reasons unknown.
I thought I had lost all hopes but Jennifer believed in my case.
Jenifer right away appealed the decision and I remember her saying to me on the phone.
She will make sure I get my green card and she thought the law was on my side.
I googled online and if you file for Motion to reconsider or reopen the chances were 2% of you winning the case.
Against all the odds Jennifer made it happen I got approved in September 2025.
I have my green card and I still sit in disbelief that I got approved.
Jenifer Oltrash is one of the best lawyers out there and I appreciate and thank her from my bottom of my heart as she has changed my life forever.
Thank you.
Eva N. profile picture
Eva N.
15:20 22 Sep 25
Jennifer is one of the best attorneys in New York. Very professional, dedicated, hard working and the best in her field. Keep up the good work.
Tara M. profile picture
Tara M.
23:35 03 Feb 25
It has been a privilege and an honor to be represented by one of the best attorney in NEW YORK. I have been a client of Jennifer for well over a decade and have recently been working with her senior paralegal Julia Gezici. I cannot summarize in words how highly efficient , educated , knowledgeable, professional and compassionate Julia has been. She’s incredibly easy to work with and I had the best experience ever. I have recommended several to this firm and will continue doing so . If you want a highly qualified and successful team on your side to represent you, then you must contact Jennifer Oltarsh. They are straightforward, honest and will never stop working with you until your desired results . I cannot recommend Oltarsh enough. They are by far the best of the best!!!!
Anil B. profile picture
Anil B.
19:24 03 Jan 25
Jennifer is the best immigration lawyer in New York! I found Jennifer's law office at a very critical time. Thanks to her and her team's professionalism, we won the case very easily and today we received our green cards! If you want to get professional help on immigration law, I strongly recommend this law office.
Nicholas J. C. profile picture
Nicholas J. C.
19:51 29 Aug 24
When my wife and I started our journey of bringing our children and gaining residence in the USA, it seemed like a far fetched dream that it would be possible. Through every twist and turn Jennifer Oltarsh and her team had a solution and solved the new issue. We have now we have successful gained legal status for our entire family.
Our family is now together, due to their dedicated work and knowledge of system.
We cannot thank them enough and would highly recommend them to anyone.
Special thanks to Bugra, Julia and Jennifer.
Khalid C. profile picture
Khalid C.
02:04 13 Dec 23
I had a Consultation with Ms. Jennifer and this women is really caring and helpful. Although she did not take the case, she opened my eyes and leaded me with right legal advices I needed for my immigration case which is very complicated .

Thank you so much !!!! ☺️
Andres A. profile picture
Andres A.
00:14 07 Nov 23
I am grateful that I found Oltarsh & Associates. Thanks to Jennifer Oltarsh, I was able to get back my residence and now my process for my U.S. Citizenship. My case was very special and difficult. I did went to different lawyers before I contacted her, and she had the solution for my case. I greatly appreciate Jennifer and her stuff for all the great and professional services as well as Rafael Gilbert. I highly recommend to anybody who is looking for an honest and professional immigration services: Oltarsh & Associates.
Jessica R. profile picture
Jessica R.
18:37 22 Mar 23
Loved working with Attorney Jennifer and Paralegal Julia. They handled my case very thoroughly as it had many hiccups, but got notices fast and when we did get a request for additional evidence they replied to my very frantic correspondence with reassurance. Could not have been happier and looking forward to progressing with my case knowing its begin handled with trustworthy people.
Oscar M. profile picture
Oscar M.
23:15 01 Feb 23
I highly recommend Jennifer Oltarsh as an immigration lawyer. She was able to get me my green card. I really appreciated the way she handled my case and her personality. Not only is extremely knowledgeable and has years of experience but it is also clear that she cares deeply about her clients. She really takes the time to prepare you for interviews and will give you a level of confidence that will make you succeed.
smdavies D. profile picture
smdavies D.
19:23 29 Jan 23
Jennifer Oltarsh represented me during my family’s complex immigration case, where I was stranded in Canada due to the Covid-19 pandemic and the closure of the US-Canada border. Jennifer was instrumental in reuniting my family after six agonizing months of separation.

Jennifer demonstrated a deep understanding of the immigration laws and regulations surrounding the pandemic and worked tirelessly to find a solution to reunite my family. She was always available to answer questions and provide guidance throughout the process. Her attention to detail and dedication to her clients is unparalleled.

Jennifer worked meticulously to represent and advocate my case while engaging the appropriate American and Canadian authorities - which ultimately ensured a smooth and safe return for me to the United State. Her ability to navigate complex regulations and promptly secure travel authorizations was amazing!

After successfully reuniting my family, Jennifer continued to provide exceptional service by helping process United States Green Cards for my wife and me! Her thorough knowledge of the immigration process and attention to detail were critical in ensuring a smooth and successful outcome. Jennifer meticulously prepared and reviewed all necessary documentation and kept us informed throughout the process. She also expertly navigated potential roadblocks and provided practical solutions to any challenges.

I am genuinely grateful for Jennifer's assistance in reuniting my family during such a difficult time. Her expertise and compassionate approach made all the difference in our case. I highly recommend Jennifer to anyone in need of immigration services. She is an exceptional lawyer and a true advocate for her clients.

Why Partner with Oltarsh & Associates, P.C.?

Oltarsh & Associates, P.C. brings unparalleled expertise in U.S. business immigration, offering strategic solutions that benefit both employers and their foreign employees. Here’s why companies trust us with their immigration needs:

  • Decades of Experience: With over six decades in business immigration law, our knowledge of U.S. immigration processes, policies, and trends is extensive.
  • Customized Solutions: We work closely with you to understand your business goals, delivering customized legal strategies that align with your unique needs.
  • Client-Centered Approach: At every step, we ensure you’re fully informed and supported, helping you navigate the complex immigration landscape with confidence.
  • Comprehensive Services: From visa petitions to corporate compliance, our services cover every aspect of business immigration law.

Frequently Asked Questions about U.S. Business Immigration

What is the difference between a nonimmigrant visa and an immigrant visa?

Nonimmigrant visas are for temporary stays in the U.S. for specific purposes like tourism, business, or temporary work. Immigrant visas, also known as green cards, grant permanent residency with a pathway to U.S. citizenship.

What are the most common types of nonimmigrant work visas?

Some of the most common nonimmigrant work visas include:

  • H-1B visa for specialty occupations
  • L-1 visa for intracompany transferees
  • O-1 visa for individuals with extraordinary ability  
  • TN visa for Canadian and Mexican professionals
  • E-2 visa for treaty investors

How long does it take to process a business immigration application?

Processing times vary depending on the type of visa, the workload of U.S. Citizenship and Immigration Services (USCIS), and whether you opt for premium processing. It can range from a few weeks to several months.

What is the PERM labor certification process?

PERM (Program Electronic Review Management) labor certification is often required for employment-based green cards. It involves testing the labor market to ensure that there are no qualified U.S. workers available for the position being offered to a foreign national.

What are the requirements for the EB-5 investor visa?

The EB-5 visa requires a significant investment in a U.S. business that creates jobs for American workers. The minimum investment amount is generally $800,000, but it can be higher depending on the location of the investment project.

How can an immigration lawyer help my business?

An experienced immigration lawyer can provide invaluable guidance throughout the business immigration process, including:

  • Assessing eligibility for different visa categories
  • Preparing and filing petitions and applications
  • Representing your company in immigration matters
  • Ensuring compliance with immigration laws
  • Developing corporate immigration policies

What are the benefits of developing a corporate immigration policy?

A well-defined corporate immigration policy can:

  • Streamline immigration processes
  • Ensure compliance with immigration laws
  • Reduce risks and potential penalties
  • Attract and retain top international talent

How can I schedule a consultation with Oltarsh & Associates, P.C.?

Contact Oltarsh & Associates, P.C. today at 212-944-9420 for a free case evaluation, or fill out the contact form on our website.

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