About Us

Big Horizon is a fully licensed Maine mortgage broker NMLS # 985472

Big Horizon mortgage professionals deliver the market’s best programs and competitive rates from trusted institutions. Customers benefit from a wide variety of offerings. Independent relationships with leading national and local lending institutions allow Big Horizon to tailor solutions to individual needs. Customers choose mortgage options that meet their needs and achieve their goals.

Sharron Eastman started Big Horizon Mortgage Corp. in 2003, in an effort to help individuals with their mortgage planning. A fully licensed professional mortgage broker, she has weathered the storm in the mortgage lending industry since the financial crisis in 2008 and her business is still growing.

Eastman grew up in Ohio and graduated from Ohio University. Prior to moving to Maine, she was a commercial real estate broker and leasing manager in Boston. She spent five years as a Maine Association of Mortgage Professionals board member and Education Committee chairwoman.

Eastman, is involved in the Kennebunk community, where she lives and works. She has served as vestry member and warden of Kennebunk’s St. David’s Episcopal Church. She also has been an Odyssey of the Mind coach in Regional School Unit 21, where her two daughters attended school.

Eastman has some high-energy hobbies. She plays tennis, winter paddle tennis, pickleball, and is a level 3 certified professional ski instructor. She is a member of the Arundel Paddle Club, York Paddle Tennis Club and the historic Kennebunk River Club.