About Roos & McNabb CPAs PC

Roland M. Roos

CPA, President

Roland has been a CPA for more than forty years here in the Central Valley. His consulting and tax planning expertise has contributed to the growth and success of his clients. Roland treats every one of his clients as if they were his only clients, priding himself on building trusted, lasting relationships.

Receiving his California CPA License in July, 1971, Roland is also licensed to practice in Nevada and Florida, and is a proud member of the AICPA. In addition, Roland serves on several Nonprofit Board of Directors and serves as a volunteer at his church.

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Tyler M. McNabb

CPA, Vice President

Tyler has a graduate degree in Taxation from Golden Gate University and most recently worked at RSM US LLP, where he provided tax solutions to middle market private equity funds and high net-worth individuals.

A California Licensed CPA with a focus on taxation and consulting, Tyler specializes in working with complex tax issues and tax structuring for professional athletes and entertainers, local breweries, restaurants and wineries, and almond/pistachio growers and processors in the Central Valley.

Tyler is currently studying for the Chartered Financial Analyst (CFA®) designation to enhance his asset management skills, and to gain further access to resources in the financial sector. Tyler plans to start providing financial planning services to new and existing clients in the foreseeable future.

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Heidi Roos

Audit Senior Manager

Heidi has over twenty years of experience as an accountant and is currently the firm's Audit Senior Manager. Graduating Magna Cum Laude from National University in 1998 with a B.S. in Accountancy, she is a proud member of the California Society of CPA's. Her focus and dedication in finding solutions to business problems is what clients value most.

Heidi's primary experience includes performing and managing many of the firm's non-for-profit audits in addition to providing tax services for individuals and businesses. Outside of the office, you'll find Heidi spending time with her family, traveling, pilates, or reading.

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Gary Ohanian

QuickBooks ProAdvisor

Gary joined our firm in June of 2020. He is a registered tax professional, a certified QuickBooks ProAdvisor, and is currently pursuing his CPA licensure. He specializes in developing efficient ways to maintain and operate the bookkeeping needs of small businesses.

Gary has five years of bookkeeping and tax preparation experience working with medium-sized manufacturing and service providing businesses. Originally from Pasadena, California, Gary moved to Fresno to be with his fiancé and has truly embraced the family-structured lifestyle and hard-working mindset that the Central Valley has to offer.

Graduating from the University of Phoenix, Gary received his MS in Accountancy. He is a candidate member of the AICPA and is an active member of the California Tax Education Council.

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Chelsey Coffman

Firm Administrator

Chelsey provides administrative support to our firm. She is experienced in a variety of different fields including healthcare, sales, and accounting. She is a highly organized and efficient worker who can handle a variety of tasks simultaneously. She has excellent written and verbal communication skills; she is a motivated self-starter who is always willing to go the extra mile.

Outside of work Chelsey takes pride in her three children, riding horses, working out and being a wife. Providing support to our clients, Chelsey ensures each of our clients are assisted and receive responsive, timely service addressing their specific needs.

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Lingfang Cao

Staff Accountant

Ling was born in China and moved to the US where she received her bachelor's degree in accounting from Ferris State University in Michigan. She relocated to Fresno in 2022 with her husband and is a candidate for the Uniform CPA Exam. She has passed AUD and REG and is currently studying for FAR.

Ling is a certified QuickBooks ProAdvisor and works with our business clients. Her goal is to obtain her CPA license in the near future. Ling enjoys spending time with family, traveling and food.

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Randell Mantilla

Accounting Associate

Randell is from the Leyte, Philippines and has over 5 years of experience in the accounting field. He received his bachelor's degree in accountancy from Saint Joseph College in Maasin. Randell is a certified QuickBooks ProAdvisor and works with our business clients.

He enjoys learning new skills and is excited to be part of our team. Randell's interests and hobbies include cycling, badminton and tropical fishkeeping.

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Rhea Redeza

Accounting Associate

Rhea is from the Philippines and has several years of accounting experience in various industries. She completed and acquired her NCIII certificate for Philippine Bookkeeping Competency in 2019, and received her Bachelor's Degree in Accountancy from the University of San Jose - Recoletos in 2020. Rhea is a certified QuickBooks ProAdvisor and works with our business clients.

Her goal is to be a CPA in the near future. She values knowledge and adheres to the rule - never stop learning. Rhea likes to listen to music and podcasts and enjoys biking.

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Marriane I. Casibo

Accounting Associate

Marriane is from Cebu City, Philippines and has 9 years of experience in the accounting field. She received her Bachelor's Degree in Management Accounting from the University of Cebu in 2014. Marriane is a Certified Quickbooks ProAdvisor and works with our business clients. Her goal is to finish her Master's Degree in Business Administration.

Outside of work, Marriane is an active JCI member who loves community service and loves spending time with her family. She’s currently learning on baking pastries. She also loves decorating event's places. She also enrolled on some online learning to enhance her skills and knowledge in different capacities.

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Kelsey Peterson

Firm Administrator

Kelsey provides administrative assistance to our firm. She has experience in customer service, accounting, healthcare, and sales. Kelsey prides herself in her ability to make people feel welcome with her genuine smile and warm personality. She thoroughly enjoys learning new information and is most passionate about making clients happy and providing quality service.

Kelsey loves spending time with her five children and enjoys golf, traveling and being a wife. She is proud to support our accounting team and truly appreciates the friendly atmosphere about working here.