Meet the Team

Diane F. Cheek, CPA

    Senior Accountant and Consultant

Diane has been with the firm since 1971.  She became a partner in 1980 and began running the company in 1999.  In 2017, Diane began to transition into retirement.  Currently she is primarily retired but available for meetings and consultations upon request.

* Diane can be reached at

Jeffrey S. Hyle, CPA
    Managing Member

Jeff has worked the majority of his career as a CPA with the firm.  After more than 25 years of accounting experience, he began managing the firm in 2017 and continues to provide the high quality of service the firm is well known for.  Jeff was born and raised in Lititz.  Currently he resides in Lancaster with his wife and daughter.  He is a graduate of Warwick High School and Shippensburg University of Pennsylvania.  

Additionally, Jeff is a member of both the Pennsylvania Society of Tax & Accounting Professionals and the National Association of Tax Professionals (NATP).

* Jeff can be reached at

Brian Ferrara, CPA

    Tax Manager

Brian joined the firm in October 2017 after working for a regional public accounting firm in Central Pennsylvania.  He has over 10 years of accounting experience in both public accounting and private industry.  Brian graduated from Lehigh University with a B.S. in Business and Economics, and also holds a Certificate in Accountancy from Villanova University.  Originally from the Philadelphia region, Brian currently resides in Quarryville, PA with his wife and three sons.

* Brian can be reached at

Jean Markow

    Senior Accountant

Jean is the daughter of James Rottmund, the founder of our company.  After studying at Mount Aloysius Junior College, she took a job at another company, but soon after came to work for her father.  She has over 30 years of accounting experience and enjoys helping clients with their QuickBooks and accounting questions.

* Jean can be reached at

Agustin Rangel

    Staff Accountant

Agustin graduated from West Chester University with a Bachelor of Science degree in Accounting.  Upon graduating he moved to North Dakota where he gained experience working for a public accounting firm.  After moving back to Pennsylvania, he joined our firm at the beginning of the 2018 tax season.

* Agustin can be reached at

Lori Smith

    Senior Accountant

Lori is a dedicated team member who has been with the firm for over 30 years.  Lori enjoys interacting with clients and coworkers.

* Lori can be reached at

Lois McDonald

    Office Manager

Lois started with our firm in 1999, and fills many roles including scheduling, payroll, proofing, and processing financial statements and tax returns.  Lois also serves as a notary public for our office and clients.  She was born and raised in Lancaster County and has worked with the public for over 25 years.  Lois currently resides in Holtwood with her husband and 2 dogs.

* Lois can be reached at

Kathleen Wright

    Administrative Assistant

Kathleen has been serving as chief secretary for our firm since 2000.  She plays a key role in supporting the accountants and serving all clients who call our office or walk in the door.  Kathleen graduated from Solanco High School where she majored in business classes, and she has many years of experience in teamwork and serving others.

* Kathleen can be reached at