Your SPM&Co Team

Stephan P. McMahon


Stephan has a sweet 16 years of experience working with closely held businesses. Instinctually, Stephan founded SPM & Co to extend his passion for growing a unique and distinctive experience for those on his team as well as each of his clients. This experiential environment was designed to produce first-class results that have a positive, long lasting impact on his clients, the community, and last but not least… his team members and their families.

Stephan focuses on working with his clients to provide them with the connected knowledge and tools to make confident, strategic decisions for their companies, thus bettering their long-term success. Given the current business climate, as challenging as it is, Stephan sees it as an opportunity to bring fresh ideas and creative solutions to his clients.

Stephan grew up spending summers on the Cape with his family until they eventually made it permanent. Settling into Harwich at the start of high school Stephan quickly immersed himself in the Cape lifestyle – complete with a rusty soft–top Jeep. After graduating as a Harwich High School Rough Rider, he joined the Navy and served 8 years as an Avionics Technician, completing 3 overseas deployments all on aircraft carriers – obviously saltwater runs through his veins. During this time Stephan also earned his degrees in Business Administration and Accounting & Finance. Upon his transition out of the Navy, Stephan started his career in public accounting working for a large CPA firm in Portland, Maine until his wife decided it would be best to move back to Cape Cod to raise their young family and dig their roots into the community where they would start an accounting and advisory firm that would help small business owners in the community thrive.

Stephan is highly involved in community endeavors on the Cape. He feels strongly about leaving a positive imprint on people’s lives both through professional and personal relationships, which is exemplified by his role on the Board of Directors for the Cape Cod Chamber and as President (Past) of the Board of Directors for the Yarmouth Chamber of Commerce, as well as past and present participation in support of the YMCA of Cape Cod; Cape Kids Meals, WellStrong and the Cape Cod Challenger Club (to name a few).

Personally, as a husband and father of two, time with family is paramount. Whether it is early morning water skiing sessions with the kids, coaching just about every sport, cheering on the sidelines of every Monomoy High School field hockey game, or family hikes that magically always end at a brewery – making time for family is critical to having some semblance of balance and true happiness.

Barb Howell

Office Administrator


Barb joined Stephan P McMahon & Company as the Office Administrator in October of 2022.

She has more than 20 years of experience in client service, sales, marketing, and project management within a variety of verticals. Barb honed her organizational skills working as a Senior Account Director at an advertising agency, a Program Quality Coordinator in higher education, and as an Office Manager/Marketing Specialist in telecommunications. She has outstanding people skills and a knack for making clients feel comfortable.

In 2018, Barb moved to the Cape from Denver with her husband and two children to get away from the hustle and bustle of the big city, and to live where her family has been vacationing for decades. When she’s not multitasking for clients and the SPM&Co Accounting Team, you will find Barb running, hunting for bargains at the thrift store, or eating a hot fudge sundae at one of the local ice cream shops.

Sharon Stemple

Office Administrator


Coming onboard with the Bruno team, Sharon joined Stephan P McMahon & Company in February 2023. With over 15 years of experience in the accounting industry, Sharon has taken on many functions from client relations, tax return assembly to payroll, and scheduling. Sharon’s administrative support to the SPM&Co team, along with her outstanding multitasking and organizational skills enable our office to run smoothly and ensure an excellent client experience.

Sharon lives on the south shore with her husband of 39 years and their two rescue dogs Ozzie and Blake. In her free time, Sharon loves to spend time with her three grandchildren, traveling to Aruba, and spending summers at their seasonal campground.

Brooke Labrie

Client Service Associate


Brooke earned her Bachelor of Science degree in Business Administration from Western New England University. Prior to joining the SPM&Co team, Brooke’s work experience extends to working in the accounting office of a local small business before making the switch to public accounting.

Brooke’s background in payroll processing, bookkeeping, and preparation of tax returns along with her stellar internal and external client service skills allow her to contribute to a myriad of company functions supporting the SPM&Co team while ensuring our clients an excellent experience.

Outside of the office, Brooke enjoys traveling, playing sports, and taking her dog, Kona, on long walks by the beach.


Ashley Fredricks, EA

Senior Accounting Associate

Ashley joined the Stephan P. McMahon & Company team as a Junior Accounting Associate in March of 2020 and has been going full speed ever since!

Jumping into public accounting only minutes before the start of a pandemic that placed enormous demands on the accounting profession as it worked to support its client ~ it was trial by fire right away and Ashley rose to the challenge.

With a strong dedication to, and respect for education she earned her bachelor’s degree in May 2021 and is now enrolled and pursuing her Master’s in Accounting (MSA).

Credential wise, Ashley is an Enrolled Agent (EA), and in so has demonstrated her knowledge of the tax code. An EA is the highest credential the IRS awards and enables Ashley to practice before them…lucky her! Ashley is also a QuickBooks Certified ProAdvisor with high-level skills and knowledge that will help businesses take full advantage of the tools QuickBooks offers, which in turn helps transform businesses into a profitable enterprise.

Prior to joining the SPM&Co team, she worked as a Payroll Specialist and Administrator, where she provided support to businesses, so they are well equipped to execute their overall goals.

The consummate team player, Ashley has quickly, and with a smile, made herself an integral part of the SPM&Co team.

Ashley grew up on the beautiful island of Jamaica and currently resides in Harwich with her husband and two children. Away from the office, she enjoys going to the beach, and taking nature walks with her family.


Jeffrey Couto

Senior Accounting Associate

Jeff joined the SPM&Co team in early 2023 as part of the acquisition of Bruno Accountants, where he has been working for the past 7 years. He earned his bachelor’s degree from Boston University in Biological Anthropology, and he holds a master’s degree in accounting from Southern New Hampshire University.

As a Senior Accounting Associate at SPM&Co, Jeff’s responsibilities include working directly with our clients on their business and personal tax advisory engagements. Additionally, Jeff is a QuickBooks Online Certified ProAdvisor.

Jeff’s family recently built their first home and they have been settling into the Westport/Fall River community. Outside of the office, Jeff spends most of his time with his wife, his three-year-old son, and their dog. Jeff is also an avid runner who enjoys playing soccer with local clubs.

Theresa Emery

Accounting Associate


Theresa earned her associated degree in Accounting at Cape Community College and then pursued her bachelor’s degree at Bridgewater State University. Theresa’s accounting experience extends to working internally with both non-profit organizations and local business, after a season at H&R Block the tax bug bit her and she is excited to continue to grow her accounting and tax career at SPM&Co.

Outside of the office, Theresa enjoys spending time with her son, cooking, hiking, kayaking, and attending comedy shows.

Brian Burke

Accounting Associate


Brian earned his bachelor’s degree in Accounting from the University of Massachusetts Dartmouth in December of 2020. While attending school he was involved in extracurricular clubs like DECA which focuses on preparing emerging leaders and entrepreneurs to be career ready, and BAP (the honor society for accounting and finance) where he served as treasurer. This desire for professional development will continue to serve him well! As a recent college graduate, Brian is excited to start his accounting career at SPM&Co.

Brian grew up in the town of Pembroke and worked as a Foreman at a landscaping company for four years as he went through school. He has just recently moved to the Cape after spending time in the summers here. During his free time, he enjoys going on his family’s boat, traveling, hiking, and playing hockey.