Mary Sue Mainella
REALTOR®

Licensing: BR927252 (Maine)
Mary Sue Mainella
REALTOR®

Licensing: BR927252 (Maine)

Mary Sue is a real estate agent with Century 21 North East in Portland, Maine, prioritizing top-tier client service and commitment to their needs. With over 30 years in health insurance, she gained expertise in management, sales, service, training, and underwriting in Maine and New York. In 2000, she became a self-employed Benefits Consultant for employers with 10-2,500 employees, honing skills like honesty, integrity, organization, attention to detail, negotiation, and follow-through—essential for real estate.

~ I will guide you through your home buying and selling process to ensure you achieve your dreams at the best market value. ~

Raised in Portland, ME, Mary Sue cherished summers on Long Island, Maine. After 12 years in New York City and Long Island, she and her family returned to Maine. Joining Century 21 North East in 2019, she built a strong reputation, closing nearly $100,000,000 in residential sales.

'It was an absolute pleasure working with you. I wish there were many more agents with your skill set and win-win approach! Thank you for bringing this to a successful close—your clients were lucky to have you.' ~ Glenna, listing agent

Mary Sue's tenacious work ethic, emotional intelligence, and professional poise drive her success. She maintains constant client communication, guides them through processes, and exceeds expectations, supported by Century 21's cutting-edge technology.

'Mary Sue was amazing—she went above and beyond, even helping with finishing touches to stage my house. Her responsiveness, attention to detail, and market research got me above asking price. I'd recommend her to anyone—she's top-notch.' ~ Kim D., Portland

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