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If they say it will be done by a certain day, it will be done no matter what. We are impressed with their love of their profession!!


Meet Ying Sa

Ying Sa is the founder and Principal Certified Public Accountant at Community CPA & Associates, Inc. based in Des Moines, Iowa. The firm provides tax, audit, accounting, business re-structuring and business IT solutions to businesses and individuals across the United States and Canada.



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Our Staff

Our team is bright, hardworking, talented and professional. They truly bring a world of diversity, experience, and quality service to our clients. Meet our team:

Song Jing Mo joined the firm in 2009 and is serving as the Director of Operations. Born in Panama, he graduated with honors from Iowa State University with a double major in Finance and Management and a minor in Economics. His calm and collected demeanor makes him well suited to work under the pressure of increased workload during tax season. He is known within the firm to have no weakness although he will deny this claim due to his humble nature. When Ying is away in her travels with her family, she heavily relies on Song to seamlessly manage all the operation of the firm.

Bo Dong is from China and is fluent in Mandarin Chinese. He received his Master of Business Administration with an emphasis in Financial Resources from Drake University in 2010. He completed his MAcc at Drake University in 2012. He manages the firm’s tax services and is especially sought after by our Chinese clients who trust Bo to handle their pressing accounting issues. When you first meet Bo, he might appear a bit rigid but that is because of his high standards for accuracy and his care and commitment to the well-being of our clients and the firm. Bo is known as the "Prince of Beijing."

Dan Yul Kim joined the firm in 2013 and currently serves as the Branch Manager of the Iowa City branch. Dan is also in charge of the firm’s marketing and is involved in all videos, marketing flyers, or events associated with the firm. He is a graduate of AIB College of Business in Business Administration with background in Accounting. Born in Korea, Dan is a Korean native speaker and is the cheerleader at the firm. His jovial and optimistic demeanor is contagious so he is the person you will want to talk to when you need your spirits lifted.


Jessica Mondragon is the youngest staff to join the firm in the winter of 2014 as the office assistant at the Iowa City branch. She is the first person to greet you when you walk into the Iowa City branch. Her tireless work ethic, ability to manage time, and optimistic attitude under pressure is admired at the firm. Her contagious smile and down-to-earth spirit continues to draw clients to the Iowa City branch. Jessica was born and raised in Chicago and is a native Spanish speaker. In her free time, she enjoys spending time with her two pets - Missy & Bella.

Charles Njoya joined the firm in the summer of 2015 and leads our Audit and Assurance Line of Service. He received his MBA from Maharishi University of Management and is a CPA and Chartered Accountant. He spent his entire career as an auditor with PricewaterhouseCoopers rising to the position of Audit Director. Charles is a Cameroon native and speaks French fluently. Interesting fact about Charles is that he has worked in 39 different countries around the world and lived in 7 of them.

Sandra Jerde joined the firm in the spring of 2015 and brings 30 years of extensive experience in tax compliance and compilation. She is a licensed CPA and ran her own practice from 1993 until 2015 when she and Community CPA decided to merge. In 1991, she received the Certificate of Commendation from Small Business Administration for representing women in business. Sandra was born and raised in Mt. Pleasant, Iowa, and travels to New York City multiple times a year to enjoy broadway plays, museums, unique cafes, and street musicians.

Don Nguyen joined the firm in the spring of 2015 and is the firm’s legal counsel and will serve as legal expert on the audits. Don is a member of the Iowa Bar and Supreme Court and the United States District Court for the Southern District of Iowa since 2007. Don is a Juris Doctor from the Southern California Institute of Law and also holds a Bachelor of Science degree from Iowa State University. Don provides legal counsel and guidance to Public and Private Corporations and Nonprofits and also advises finance and corporate development regarding mergers and acquisitions and other transactional matters. He is a dog lover and an avid fisherman.

Yu Yu is the most recent addition to the Iowa City Branch. She joined the firm in January of 2016 to grow the financial service at the firm. Yu Yu received her Bachelor's in Finance and Accounting from University of Iowa. She has been in the financial industry as an Investment Advisro Representative since 2010 and has her life/health license, long-term care certificates, series 6, 63, adnd 65 licenses. She was born in Shanghai, China and speaks Mandarin and Korean fluently. Yu Yu enjoys spending quality time with her family and volunteering at different schools and organizations in the community.

James Peng is the most recent addition to the Des Moines office. He joined the firm in January of 2016 and received his Master's in Accountancy from University of Iowa. James is a CPA and also assists clients with any accounting and taxation needs at the firm. James is from Guangzhou, China and speaks both Mandarin and Cantonese. He is adventurous. His goal in life is to travel around the world.

Monica Parra joined the firm in the Spring of 2016. She is from Colombia and is fluent in Spanish. She received her degree in Accounting and Finance from Marco Fidel Suarez University (Medellin- Colombia) in 2010. Monica is proficient in accounting and financial management with experience in administration. Her smile and sweet nature is contagious and will reassure you are in good hands.

Joon Won is the most recent addition to the Iowa City Branch. He is born from Korea and speaks Korean. He joined the firm in Summer of 2016. Joon received his Bachelors of Business Administration in Finance from the University of Iowa in 2016. Joon assists clients with accounting and taxation. He enjoys interacting with different people at a variety of cultures.

Khwan Rapeeporn Chomjungwad joined the firm in 2005 and fluent in Thai language. She received her Masters of Accounting from Drake University in 2007 and her Bachelors’ degree in Accounting and Management in 2006 from Drake University. She was away from our office in 2015 on “Vacation” but now she is back! Khwan’s elegance and calm demeanor always bring a sense of tranquility to the office even amid the most hectic storms of tax season.