Heather Olen

Owner, Heather, started off as an executive assistant for a mortgage company ten years ago, and transitioned to an operations manager. She then transitioned to the controller position with a multi-state company, and she truly enjoyed this job as it stretched her. She then went on to be a controller for a huge health insurance company and that was not what she was meant to do. She is more of a small business person, meaning she love to know who she is working with. She is not someone who can work in corporate, it’s just not where her heart is. She is currently finishing her masters in forensic accounting, and will be a certified fraud examiner at the end of next year. She also was just accepted to the Harvard School of Business entrepreneurship program starting at the beginning of 2019.
She is engaged to a wonderful man named John, has a beautiful 5 year old little boy named Declan, and a puppy named Deacon. She love to run and she just completed her first marathon.


Stacey Dalpe

Operations Manager, Stacey, who has worked at EOS since January 2012, is Cheryl’s “good right arm,” handling most aspects of the business.  She provides top-notch customer service and can resolve nearly any problem as it happens.  Stacey has over 20 years of business experience as a hair stylist, customer service representative, account executive and director of a high-volume call center.  She has managed up to eight direct-report employees, along with managing five off-site locations with full staff at each location.  She has strong organizational, troubleshooting, problem-solving, time-management, communication and presentation skills.  Stacey studied for her Series 6 certification while working for a large financial company where she also learned insurance writing.  She has also provided moderate tech support and project-managed a VOIP phone system for 75 users in six offices.

At home, Stacey enjoys attending her teenage son’s many sporting events, their two dogs and large family gatherings.  The family also likes to hike, travel, go snowmobiling and visit new restaurants.  Organic gardening and cooking are also among Stacey’s favorite pastimes.


Angela Pignataro Nummy

Staff Accountant, Angela, is a small business accounting professional and provides bookkeeping services to EOS clients.  She is diligent, organized and knowledgeable and a valuable member of the EOS staff.  Angela has an Associate of Science degree in business administration from Quinsigamond Community College and and a bachelor’s degree in business administration and accounting from Assumption College.  She has over 10 years of experience in tax work, primarily individual tax prep, which she loves, as well as corporate returns and representation.  Angela has worked as a staff accountant, providing a full suite of accounting services to sole proprietors and corporations.  She has also worked as the office manager at a public golf course, while serving as our Staff Accountant.

When Angela isn’t working, her first priority is family.  She spends as much time with them as possible.  She also enjoys running, gardening and winter sports, and goes to the ocean with her daughter often.




Jenna Sarosi

Office Manager, Jenna, is a team player with a commitment to customer service, who possesses a long track record of working in various administrative roles, coupled with good PC skills and the ability to communicate confidently at all levels. Jenna has a highly organized approach, plenty of initiative and a genuine desire to contribute to the ongoing success of your office. At the end of May she will have a certificate in entrepreneurship and small business management, she values working with small businesses and building relationships with those she works with.

When Jenna isn’t working, she can be found at home with her husband and daughter and their lovely animals. She has a passion for photography and loves to cook for family and friends.



  • What one client says about Effective Office Services:

    “Effective Office Services has been an invaluable asset to our company. Their focus on efficiency and outstanding organizational skills have helped make us a more productive, well-run company. These skills were critical to the successful transition of a very daunting and challenging restructuring in 2010. They also schedule hundreds of our training classes insuring they run smoothly, which they do. What really sticks out for me is Their integrity and professionalism which are consistently exemplified in the way they do business.”

    David Giwerc, MCC
    Founder & President, ADD Coach Academy

Contact us at:

Office: 508.987.0762

Fax: 508.987.1481


* New clients receive the first hour of office services free, for two months.

* There are NO minimum service hours required when working with EOS. See Fees & Policies for more details.