who we are

Empowering our clients to achieve financial success is at the heart of our mission. Backed by our knowledge and expertise, we are committed to providing a full range of personalized, comprehensive, and effective services tailored to each client.

For over two decades, Nosal Pro has worked diligently to deliver financial solutions that contribute to the continued success of our clients.

At Nosal Pro, we understand that managing your finances can be overwhelming. That’s why we have assembled a team of approachable and experienced accountants and consultants who are committed to making the process as easy and stress-free as possible. Whether you’re a small business owner or an individual looking to file your taxes, we have the skills and insight to help you manage and reach your financial goals.

We believe not only in cultivating the success of our clients but also in the growth of our employees and community as well. We aim to lay the groundwork for our employees to expand their knowledge and challenge their strategies — and in turn, use their advanced skills to empower the many business owners and individuals that help build our beloved Omaha community.

By remaining an unwavering resource for accounting, tax, and advisory services, we see ourselves as true partners to our clients, providing services that are carefully planned and tailored to their financial goals. From tax planning to bookkeeping, we’re here to help you succeed.

Meet the Team

Lester P. Nosal


Les graduated from the University of Nebraska at Lincoln with a Bachelor of Science in Business Administration with Emphasis in Accounting. Les has been working in the accounting industry for over 40 years in the Omaha area. He specializes in income tax planning and advising business clients on more profitable solutions. Les enjoys working closely with small and medium sized organizations in various industries both locally and nationally. He takes great pride and pleasure in seeing his clients become more successful.

Les has been married for 43 years, with two children and six grandchildren. He loves hiking, having trekked nearly 20,000 miles during his lifetime. He also yells a lot at his TV while watching Nebraska football or the Chicago Cubs.

Lindsay Tworek


Lindsay is a proud graduate of the University of Nebraska at Omaha. She has over 18 years of accounting experience specializing in business taxes. Lindsay has also been a controller, director of finance, and internal auditor for various companies (large and small) in the Omaha area. This experience makes her a versatile consultant for our firm’s business clients as she has walked the talk. To her, our clients are more than a tax return, so she proactively works with our business owners throughout the year to ensure that their accounting and tax needs are met. She believes that developing the proper accounting and tax strategy is an ongoing and adaptive project.

In her spare time, she enjoys volunteering in the community and spending time with her family. In the evenings and on the weekends, you can find her playing the role of cheerleader/#1 fan to her two children in their various activities.

Robyn Miller


Robyn holds an MBA and a Bachelor’s degree in business administration with an emphasis in accounting from Oklahoma State University. Robyn comes to us with over 20 years of public accounting experience. Robyn specializes in individual, business and fiduciary taxes, as well as payroll tax and sales tax. She is committed to providing excellent service and helping clients navigate all tax issues. Outside of work, Robyn loves to spend time with her family and friends, relaxing at the lake, and sewing.

Christina Merrill

Christina attended Bellevue University where she graduated with honors earning her an MBA with a concentration in accounting. Christina started with Nosal Professional Group in 2000 and manages her clients’ accounting and software needs. Her experience includes payroll tax, sales tax, corporate income tax, financial statements, and various accounting software. She enjoys spending time with friends, family, and pets and makes time for exercise and relaxation.

Elizabeth Perez

Liz graduated with her BSBA in accounting from the University of Nebraska at Omaha. Liz joined Nosal Professional Group in 2013, specializing in multi-state business income tax returns and handles the ACA filing. Liz is an Omaha native who has been working in the accounting field since 2008. In her free time, Liz enjoys spending time with her family and furry friends while learning about holistic wellness and exploring alternative health modalities.

Blake Horacek

Blake graduated with honors from the University of Nebraska at Omaha earning his Bachelor’s degree in business with an accounting focus. Blake joined our firm in 2012 and specializes in business income taxes, payroll taxes, and 1099 preparation. Blake also has extensive customer service experience, working closely with our clients to ensure their needs are always taken care of. In his free time, he enjoys spending time with his wife and pets and is an avid fan of exercise and basketball.

Steph Kopfle

Stephanie graduated from the Nebraska College of Business and received her Associate’s degree in accounting. Stephanie has 20 years of public accounting in the Omaha area and works closely with our clients on bookkeeping and payroll. In her spare time, she enjoys being with her family and friends and cheering on the Nebraska Huskers Volleyball girls. She is also an avid dog lover and enjoys snuggles on the couch with Tucker and Cooper.

James Granger

James has an MBA from the University of Nebraska at Omaha and a BSBA in accounting from Midland University in Fremont, Nebraska. He started working part-time for Nosal Professional Group in 2020. Jim has 25 years of diverse operation, financial reporting, budgeting and financial analysis experience, renewable energy and banking industries. In his free time, he enjoys spending time with his wife and two kids.

Jenny Petersen

Jenny joined Nosal Professional Group team in 2000 and has over 40 years of administrative experience. She handles and oversees all administrative aspects of the firm, such as client billing, accounts payable, training, IT management, human resources and client relations as well as, providing administrative support to our small business teams. Jenny understands the important role an efficient and supportive administrative team is to the success of the firm. Outside the firm, you will find her with her husband of 43 years and their two golden retrievers visiting state parks. She also keeps busy reading and spending time with her kids and three grandchildren.

Alex Petersen

Alex graduated from the University of Nebraska at Omaha with a Bachelor’s degree in sociology. He started working for Nosal Professional Group in 2012. He manages the technology side of the firm, assisting with office projects and firm administration. Alex specializes in tax return processing, social media management, and technical support. He handles the training of our individual and small business clients on various software programs and procedures. Alex is committed to keeping a pulse on the current and upcoming technology in the accounting field. Alex enjoys playing golf, bike riding, reading, a good podcast, and watching movies. He also enjoys spending time with his wife, two kids, and two golden retrievers.

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