
Mark Sullivan CPA
5.0(3)
Offers online services
16 hires on Thervo
37+ years in business
David D. says, "From initial contact, Mark conducts himself in a professional manner. I continue to remain satisfied with the tax preparation Mark did for me. From reviewing my 2015, 2016, and 2017 filings and working on my 2018 filing, I could not be happier with the results. I highly recommend working with Mark and will continue to use his services in the future. I will continue to make recommendations to friends and colleagues to use Mark as an accountant. " Read more