Checks & Balances Business Service in Windham, ME serves Small Businesses in the Greater Portland and Sebago Lakes Region areas. We are proud to have the following certifications and affiliations - Notary Public, State of Maine. Member of the Sebago Lakes Region Chamber of Commerce and The American Institute of Professional Bookkeepers. Checks & Balances Business Service is a Female Owned, Locally Owned business. We have been proudly serving the Windham, ME area since 2008.