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The Strategic Performance Management program forces your team to focus on the critical or key factors which make for success. It also requires managers to think long-term instead of being totally absorbed in the day-to-day aspects of a job.

John Shafer of Shafer Vineyards

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Team

Heather Sprauve is a native of Deer Park, California. She attended Pacific Union College (PUC) in Angwin, then transferred to their sister college, Atlantic Union College in South Lancaster, Massachusetts, before returning to Angwin to complete her degree. She started out as an art major but after taking her first business class, discovered an aptitude for accounting and made that her major. Heather moved to the Virgin Islands where she married and spent 18 years working for an accounting firm. She worked for BDCo part-time for a few years and then following the devastating impact of hurricanes Irma and Maria, returned to California. While she enjoys being back in California, Heather misses her daily view of the Caribbean Ocean from almost any spot on the 31 square mile island of St. Thomas. Her interests include hiking, traveling and exploring new places.

Heather SprauveGlobal Gallivanter

Diane Leenders is a graduate of Saint Mary's College in Moraga, California. She is an experienced tax professional who has previously held audit positions in both public accounting and industry. Diane is an open water swimmer who regularly competes, along with members of her family, in masters swimming events. She enjoys the feeling of gliding through the waves and the resulting sense of calm. Water is a recurring theme in her life, as she met her husband on a water skiing adventure. Diane is an early riser and her daily ritual begins with coffee and a view of the rising sun. Diane cherishes this time alone and feels that "each day provides an opportunity to make that day meaningful." Diane is a CPA, licensed by the California Board of Accountancy.

Diane LeendersIlluminator

Aaron Soon, an alumnus of the Shidler School of Business at the University of Hawaii at Manoa, brings a unique blend of experience to our tax team. Originally embarking on an engineering journey at UCLA, Aaron eventually returned to his Hawaiian roots, where he pivoted to a focus in accounting and finance. His diverse academic background and prior work experience enriches our team with fresh perspectives. Aaron's successful journey to passing the CPA examination was partly fueled by collaborative study sessions with his wife, who was concurrently preparing for her medical boards. In his role as a dedicated tax professional, Aaron draws inspiration from his wife's resilience and determination. The couple cherishes their moments together, finding solace and strength in each other's company amidst their demanding careers. A versatile athlete, Aaron has dabbled in various team sports, ultimately finding his passion in cross country and track during his high school years. These days, away from the spreadsheets and tax forms, Aaron is often spotted at HiClimb, honing his bouldering skills and embracing the challenges of climbing, much like he tackles complexities in taxation. Aaron is a CPA, Certified by the Hawaii Board of Public Accounting

Aaron SoonTax Crux Crusher

Erica Riddle, CPA is a partner in Brotemarkle Davis & Co. specializing in tax and assurance services, operational reviews and business consulting. Erica also serves as the firm's wine industry analyst, spearheading the firm's efforts to provide and share key insights into the wine business with our customers. Erica joined BDCo in 2013 and has both a Masters in Accounting from California State University, Sacramento and a Masters of Science in Taxation from Golden Gate University. She is also certified in Strategic Performance Management. Prior to joining BDCo, she was the Labor Optimization Manager at Six Flags Discovery Kingdom. Although her office was located right next to a roller coaster, Erica says her favorite attraction at the park was the tigers she first got to know as cubs. As a knitting hobbyist, Erica says the key to her success is patience and concentration, which also makes her a wizard at spreadsheets, programming, and all things accounting. She also holds the unprecedented distinction of being a candy maker and is a "third-generation Riddle Brittler". Erica is a CPA licensed by the California Board of Accountancy.

Erica RiddleExcelerator

Chandra Englehart is a resident of Illinois and holds a degree from the University of Evansville (UE) and a Masters in Business Administration from the University of Southern Indiana. She has prior experience in both audit and tax and has held accounting roles in both private equity funds and banks. At one point, she even worked on a cemetery audit and was engaged in counting headstones. She is excited about applying her spirit-counting expertise in Wine Country and to helping people make sense of the numbers. She is an avid baseball fan and competitor, and as a former player on the NCAA Division 1 UE softball team, still holds the home run record. Her accolades don’t stop there as she was recognized as a 4 time all Academic player and at one point even held the record for getting “Hit by Pitch”. A mother of two young children, Chandra is inspired by her Mom, and is constantly looking for new ways to grow and learn. In 2025, she became a Certified Management Accountant(CMA) through the Institute of Management Accountants. Chandra is a CPA licensed by the Illinois Board of Examiners, and holds a CMA (Certified Management Accountant) license from the Institute of Management Accountants.

Chandra EnglehartPinch Hitter

Erica Umphreyville has always been surrounded by numbers and accountants—from her parents to her siblings—but her true passion lies in making a meaningful impact on her community and for her clients. A graduate of Southern Methodist University in Dallas, Texas, Erica holds a Master of Science in Accounting. She honed her expertise at a Big 4 CPA firm, focusing on the governmental and non-profit sectors, and more recently served as a Controller, overseeing the financial operations of 24 Title I charter schools. Erica’s deep connection to her work is inspired by the powerful women in her life, especially her mother, who rose from an Accounts Payable Manager to a Director of Finance in the Biotech industry, embodying the hard work and dedication that Erica values. Though based in Texas, Erica is excited to work with wineries, leveraging her unique blend of analytical prowess and creative problem-solving to unravel complex accounting challenges and help clients achieve their goals. When she’s not delving into data or strategizing with clients, you might find Erica appreciating nature, whether it’s walking on a trail near her apartment or engaging in a competitive game of pickleball. She also enjoys exploring her culinary side, cooking Italian food, and growing her own herb and vegetable garden. Erica is a CPA, licensed by the Texas State Board of Public Accountancy

Erica UmphreyvilleAltruistic Auditor

Jake Thomas has a unique background which combines advanced studies in Physics and WSET Level 3 certifications in Wine & Spirits. He has taught physics classes at Stanford and created more than 500 custom cocktails at high end resorts in the Bay Area. Whether he finds himself behind a desk, in front of a classroom, or working the bar, Jake is motivated by the impact he is able to have on others. Jake is a life-long learner who looks for new ways to stretch beyond his comfort zone. We are grateful to have access to his curiosity, knowledge, and mixology magic as a member of the firm’s administrative team. When he has time outside of work and is not busy researching Quantum Field Theory, Quantum Electrodynamics, Chaos Theory or mixing whiskey cocktails, Jake is fond of trips to Canada for back country snowboarding.

Jake ThomasIrrational Number Nerd

Lisa Akrawi is a graduate of Walla Walla University where she earned a BBA with a concentration in accounting and a certificate of business analytics. A former Napa Valley resident, she was drawn to accounting by an interest in numbers, organization, and balance. She sees accounting as a specialized language to learn and apply. Her BDCo title, 'Virtuoso', is word-play on the importance of integrity in the role of a public accountant and the artistic endeavors in her personal life. She became a certified makeup artist while obtaining her BBA and continues to make time for creative activities, even when work gets busy. This is her way of maintaining time management, critical thinking, and work-life balance. From her Orlando, Florida home, Lisa enjoys peaceful mornings, summer storms, and a sunny house full of pets and plants.

Lisa AkrawiVirtuoso

*Definition is here. When asked about her favorite part of her last job, Alex Castro was quick to respond "the view". An avid appreciator of both the beauties of nature and the essence of people, one of her favorite non-work activities is to head to the beach to watch the sunset. Alex is a Napa native with experience in the wine and sports training industries. Arriving for her first day of work in the middle of the Covid-19 stay at home order, Alex met the team online. Her upbeat energy and positive, infectious attitude are a great addition to our customer service team - both in person and online.

Alexandria CastroPhi-localist*

Known as 'The Nordic Decoder' for his heritage and talent for simplifying complex systems, Daigen Afdahl brings technical expertise and personal insight to the BDCo team as Tax Manager. With roots on a Wisconsin dairy farm and a passion for uncovering the stories behind numbers, he specializes in helping businesses and individuals navigate tax code sections while leveraging data to support informed decision-making. Daigen earned his Bachelor of Science in Business Administration and Master of Professional Accountancy from Montana State University in Bozeman, where he honed his problem-solving skills and practical expertise. He gained hands-on experience as a volunteer preparing tax returns for residents of remote Alaskan villages, followed by advancing roles in public accounting, where he developed extensive skills in tax return preparation, staff management, and strategic financial planning. Beyond the office, Daigen’s creativity extends to the kitchen, where he crafts gluten-free and dairy-free meals inspired by a recent lifestyle change. A lifelong learner and problem solver, he thrives on helping clients optimize their tax strategies, tackle operational challenges, and achieve their business goals in complex industries.

Daigen AfdahlNordic Decoder

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1000 Main Street, Suite 250
Napa, CA 94559

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707-963-4466

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email  :  info@bdcocpa.com

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