Management Team

Stephen D. Margerum, ARM®, CPM®

Founder, Principal - Operations & Management

Stephen Margerum, CPM® received his Bachelor of Business Administration degree from James Madison University in 2002, majoring in Marketing and Information Systems. Stephen joined Equity Management Inc. in 2004 beginning as a Leasing Consultant, then as a Property Manager and ultimately as a Regional Property Manager. He became the Regional Manager for the Tennessee based value-add portfolio of 500+ units. Once returning to Maryland, Stephen managed an apartment portfolio in Prince Georges County and Baltimore County of 2,200+ units.

Currently, Stephen manages the daily operations for all properties under Cove Property Management and has developed over 50,000 sq. feet of residential units and commercial space in-house. Stephen holds an Accredited Residential Manager (ARM®) and a Certified Property Manager (CPM®) designation from the Institute of Real Estate Management (IREM) as well as being the Executive CPM for Cove. Stephen teaches Investment Real Estate classes nationally with IREM. Stephen is a Past President of the Maryland Multifamily Housing Association (MMHA), serves on the Board of Directors for MMHA and IREM Maryland Chapter 16.

Additionally, Stephen received the IREM Professional Achievement Award in 2016. The award recognizes individuals who have earned an IREM-conferred credential who have continued on with their professional development activities and have realized outstanding professional accomplishments beyond earning their IREM credential.

Douglas Margerum, CPM®

Founder, Principal - Business Development

Douglas Margerum, CPM® received his Bachelor of Science degree from the University of Maryland in 1970 with majors in Personnel Management and Economics. He also attended American University for real estate studies. Mr. Margerum received his Certified Property Manager (CPM®) designation from the Institute of Real Estate Management in 1972 and holds a Maryland Real Estate Brokers’ License.

Mr. Margerum worked for Community Realty Company, Inc., a local firm with over 10,000 apartment units, beginning as a Management Trainee, then as a Property Manager and eventually as Assistant Director of Property Management. He managed numerous properties throughout Washington and Baltimore, including the opening of new properties in the region. In 1977, Mr. Margerum joined DRG Financial Corporation as Second Vice President. There he specialized in FHA/HUD financing of existing apartment communities.

In 1980, Mr. Margerum formed Equity Management, Inc. As Founder, President and Chief Executive Officer, Mr. Margerum oversaw the growth of the firm that managed over 12,000 apartment units in nine states. In 2008, Mr. Margerum sold the third party management business of Equity Management Inc. to the senior executives; the purpose of this was to allow Mr. Margerum to acquire and develop additional multifamily equity investments.

Michelle L. Green

Chief Financial Officer

Michelle Green has served as Director of Finance and HR with Cove Property Management since February 2016. Michelle comes to Cove with over 13 years of finance and accountancy experience. As a financial executive she is responsible for corporate accounting, treasury management, financial reporting and internal control policies and procedures. As head of human capital management, she is also responsible for human resource infrastructure including strategic planning for recruitment, training, benefits and labor relations.

Michelle is a member of the Society of Human Resource Management. She holds a Bachelor’s degree in Finance and Information System as well as a Master of Business Administration.

Courtney Higgins, ARM®, CPM®

Director of Operations

Courtney began in the multi-family housing industry in 1999 as a Leasing Consultant. After 9 short months she was promoted to Assistant Property Manager and then a year later, Property Manager. Over the years, she has been professionally recognized for many awards including community and resident satisfaction. Courtney joined the Cove Property Management team as Property Manager in February 2019 when Spa Cove Apartments was acquired, and West Woods Apartments was added to her portfolio as well. In August of 2020, Courtney was promoted to the role of Senior Property Manager where she was a resource and provided support to our Washington Region. With her continuous hard work and dedication, Courtney was promoted to Assistant Director of Operations in February of 2021 and received her ARM® and CPM® in the same year. After 18 months of working alongside Sonya and Steve in preparation for the role, in September of 2022 she assumed the role of Director of Operations. Outside of work Courtney loves to spend time with her husband and 4 sons – who keep her incredibly busy with football, wrestling, basketball, lacrosse and baseball! She loves the outdoors and spending time at the beach and doing yard work. One thing she would love to learn is how to knit!

Caitlin Shrum, ARM®

Manager of Operations & Training

Caitlin joined our on-site management team in St Mary’s County, MD in 2013 and quickly became an integral part of our team. She began as a leasing consultant and was promoted to an Assistant Property Manager two years later. After 5 years of working at Park Villas and Villas at Greenview, Caitlin joined our corporate team in 2018 in a created position as our Operations Coordinator and in 2021 was promoted to Manager of Marketing & Training and now serves as our Manager of Operations & Marketing. She provides all company and property marketing; operational training, support, and career pathing to all team members, supports our corporate team with all facets of our day-to-day management, and spearheads all of our Cove Cares philanthropic efforts.

Caitlin received her ARM® in 2017 and was awarded ARM® of the Year in 2019 by the IREM Maryland Chapter. Caitlin serves on the Board of Directors for the the IREM Maryland Chapter, as well as chairs numerous other committees within IREM and MMHA.

Sonya Zoppo Campbell, CPM®

Executive Management Analyst

Sonya Zoppo Campbell, CPM® joined Cove Property Management as the Director of Operations in January, 2015. Sonya brings 25 years of diverse property management experience to Cove, including multi-family residential and lease up management, commercial and retail management, and condominium association management. She was the gold star winner of the Maryland Multi-Housing Association (MMHA) Regional Property Manager of the Year award in 2011, the gold star winner of the MMHA Property Manager of the Year award in 2001 and has received various other awards during her career. In September of 2022 Sonya transitioned to her new role of Executive Management Analyst and will continue to provide operational support to our corporate team.

Sonya is a Certified Property Manager (CPM®) through the Institute of Real Estate Management (IREM), serves on various local IREM committees, and is a past MMHA Executive Board member and Past President for IREM Maryland Chapter 16. Sonya’s philosophy is simple; the integral parts of a successful team and profitable assets are teamwork, service and dedication to both owners and residents. Sonya loves golf and Florida, with an impressive 16 handicap.

Katie Horetsky, ARM®

Project Manager

Katie graduated with a Bachelor of Arts degree from Goucher College in 2010. She began her career in Property Management in 2010 as a Leasing Consultant and was quickly promoted to an Assistant Property Manager followed by Property Manager. She joined the Cove Property Management Team as a Property Manager at The Mount Royal and Queen Anne Belvedere Apartments in 2015 and obtained her ARM® designation through the Institute of Real Estate Management. Throughout her career Katie developed a passion for the care and improvement of the physical assets we manage, and joined our corporate team in 2019 as a Project Manager. As Project Manager she has executed numerous capital renovation projects, streamlined our contract bidding process, and identified opportunities to reduce expenses while maintaining our high standards of service. Fun fact about Katie, she started as a part time porter, cleaning commercial spaces!

Sarah Mutterperl, SHRM-CP

Employee Relations Coordinator & Recruiting

Sarah started her career at Cove Property Management as Property Manager at Vivant Woodholme in January 2020. She came to our company with 6 years’ experience and had previously managed several hundred scattered units in Maryland. Sarah moved to Baltimore in 2004 from Rockland County, NY. She has a Bachelor of Arts degree and is continuing her education by working on her Real Estate License. Sarah’s outgoing, bubbly personality is only part of what you see when you meet with Sarah. She is dedicated and passionate about her company and its team members, and it shows in all her hard work. In June 2021 Sarah was promoted to the role of Employee Relations & Recruiting. When Sarah is not at work, she tends to her wonderful husband and three precious children. As if that is not enough, Sarah is a figure skater and has run an all-women’s figure skating program for 14+ years and has debuted in 15 skating performances.

Brenda Belt

Property Accountant

Brenda has over 15 years of accounting experience. A determined self-starter and team player; she is passionate about seeing all task and projects through to ensure the client is content with the work delivered. Brenda is currently enrolled in the University of Phoenix and Maryland Real Estate classes. Outside of work Brenda enjoys traveling and the experiences vast new destinations have to offer. When she is not traveling, she remains active locally by exploring the waterways of Maryland.

Scout Chesapeake Margerum


Scout is a male Fox Red Labrador Retriever puppy from Keepsake Labradors in West Virginia. When Scout is not sleeping/snoring in our office he is chasing sticks and tennis balls or swimming in the Bay. Other than the mailman, Scout is loved by all that meet him.