Joseph has garnered experience at boutique and national firms. He now specializes in providing in-depth tax preparation, accounting & advisory services to businesses and individuals that are local (Oregon) or out-of-state. He is also adept at handling a variety of estate and nonprofit, tax and accounting matters. Joseph grew up near Portland, participated in collegiate athletics, and went to college in Portland. He served in the Army for a term, living near Austin, Texas. He has a Master of Financial Analysis degree from Portland State University and is a Certified Public Accountant in the state of Oregon. He now lives in Clackamas County with his family. By combining his experience and desire to serve, he aims to provide an outstanding experience.

William's Enrolled Agent designation (EA) is the highest credential the Internal Revenue Service awards, and gives him the ability to represent taxpayers in collections, audits and appeals. With a meticulous understanding of tax laws, he offers clients tailored and comprehensive tax services. William grew up near Portland, and then spent a few years living in Idaho and Washington with his family before they moved back to the area. He held jobs in the real estate and auto industries prior to beginning his accounting career. Known for his personalized approach, William is dedicated to keeping abreast of the latest tax laws and regulations, thus ensuring that his clients receive reliable and knowledgeable advice.

Karyn is a Certified Public Accountant with more than 25 years of experience in accounting, tax, payroll, and business operations. With senior leadership experience in both industry and public accounting, she helps small and mid-sized businesses improve financial processes, strengthen reporting, and make informed business decisions through practical accounting and advisory services. Karyn earned her accounting degree from Portland State University and is a CPA in Oregon and Washington, an Enrolled Agent, an Oregon Tax Consultant, and a QuickBooks Certified ProAdvisor. A lifelong Oregonian, Karyn grew up in Sandy and now lives in Eagle Creek after spending more than 30 years in the Clackamas and Damascus communities. Outside of work, she enjoys fitness activities, puzzles, new experiences, and spending time with her family.

With over 13 years of accounting experience, Tiffany has a wealth of knowledge in tax, accounting, payroll and assurance. She served on staff for eight years at Dowsett, Fogg & Doler PC (CPAs), four years as an accountant in aerospace manufacturing, and as Office Manager at an import and export company. Born in China, Tiffany relocated to Newport, Oregon, at the age of 12. She holds an accounting degree from Portland State University. In her personal time, Tiffany enjoys spending time with family and friends, hiking, and exploring Portland’s diverse culinary scene and natural beauty. Tiffany is committed to accuracy and efficiency, while leveraging her extensive accounting and tax experience to deliver exceptional service and support clients in achieving their financial goals.

Jessie joined Witzig CPA during the 2025 tax filing season and has since returned as a full-time, year-round team member. He assists individuals and small businesses with tax compliance, financial organization, and accounting matters. His diverse professional background, which includes military service and corporate experience, provides him with practical insight into business operations and client needs. Jessie previously served alongside Joseph Witzig on an eight-person military intelligence team overseas and in Texas. That experience strengthened his analytical, operational, and problem-solving skills while reinforcing the importance of teamwork, adaptability, and attention to detail. His experience working across multiple regions and industries enables him to approach tax and accounting matters with professionalism, precision, and a client-focused perspective. Originally from Alabama, Jessie enjoys spending time with his family and serves as captain of his BCA billiards team.

Stephanie Mooers joined the firm with 20 years of experience as the Office Manager for the CPA firm Dowsett Fogg & Doler, PC., and 10 years of related administrative support working alongside Physicians, Construction CEO’s, Wastewater Treatment Techs and Food Brokers. Stephanie has a passion for providing effective assistance to all team members while maintaining strong communication, productivity and enthusiasm. Her goal is to streamline any processes that will enhance and contribute to the company’s overall success. Stephanie claims to “wear many hats” to get the job done. In her off hours, Stephanie enjoys fishing, arts & crafts and spending as much time as she can with her family.