Braintree, MA and Salem, NH (October 29, 2026) – The Peabody Companies, a group of award-winning property management and real estate firms now celebrating its 50th anniversary, is pleased to announce that Marilyn Santiago of Salem, New Hampshire, has completed all course work and passed a qualifying examination for designation as an Accredited Residential Manager (ARM). She will be installed as an ARM during an upcoming Institute of Real Estate Management (IREM) Boston event.

The ARM certification process teaches early-career real estate managers the core competencies to manage residential properties successfully and is widely recognized in the residential property management industry. 

Santiago joined The Peabody Companies in October of 2025 and is the property manager at both Rita Hall Apartments and Saunders School Apartments in Lawrence, Massachusetts.  She was previously awarded the IREM New England Past President’s Scholarship.

“We’re so proud of Marilyn and her latest achievement,” said Erin Simas, learning and development manager with The Peabody Companies. “The ARM credential is known for industry excellence, and will help position Marilyn for even more professional accomplishments.”