Matrix Property Management
Matrix Property Management
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WE OFFER THE BEST property management for your HOA community

The Matrix Property Management Group team is a collaborative group of experienced professionals dedicated to delivering responsive, hands-on management for homeowner associations across New Jersey. With deep expertise spanning property management, accounting, administration, marketing, and community operations, our team partners closely with HOA boards to provide thoughtful guidance, clear communication, and dependable support. We combine industry knowledge, local insight, and a people-first approach to ensure the communities we serve are well-managed, financially sound, and positioned for long-term success. 

SEE WHAT OUR SATISFIED CUSTOMERS SAY!

OUR MISSION is to deliver professional, personalized property management for HOA communities with a focus on open communication, prompt follow-through, and creating a supportive, people-first environment for residents and boards.


OUR GOAL is to support the HOA communities we serve with exceptional service, proactive communication, and expert property management. We strive to enhance the quality of life for residents, maintain and improve common areas, and uphold the covenants, declarations, and bylaws that preserve the integrity and value of each community. We are committed to building strong partnerships with HOA boards and residents, providing clear guidance, and ensuring each community we manage operates smoothly, efficiently, and with financial integrity.

Board Relations & Correspondence 

Prepare for and Attend Monthly and Annual Meetings

Preparation of Monthly Management Reports 

Interpretation of Governing Documents 

Routine Property Inspections, including Night and Weekends. Answering all Incoming Calls 

Resolving Homeowner Issues 

Vendor Management & Project Management 

Issuing Work Orders  

Office Services & Records Maintenance

Personnel Supervision 24/7 Emergency Service

Logo & Website Design 


Receive, Review and Prepare Payments.
Vendor Bid Preparation & Analysis
Insurance Reviews & Recommendations
Posting Monthly/Quarterly Assessments
Initial Collection Process
Budget Preparation
Financial Statements Preparation
Monthly and Year End Financial Reporting
Working with Auditor for Annual Audit
Analysis and Reporting of Reserve Accounts 

meet the matrix team

Property management company staff. Matrix Property management group office staff.

ERIN SPILIOTOPOULOS Owner - Head Property Manager

ERIN SPILIOTOPOULOS Owner - Head Property Manager

ERIN SPILIOTOPOULOS Owner - Head Property Manager

  Erin, CMCA, AMS is an Owner, the Head Property Manager and the Head of Acquisitions at Matrix. She is a key leader at our firm, bringing over six years of comprehensive experience in residential, commercial, townhome, condominium, and luxury community management. Known for her hands-on approach and exceptional responsiveness, Erin is de

  Erin, CMCA, AMS is an Owner, the Head Property Manager and the Head of Acquisitions at Matrix. She is a key leader at our firm, bringing over six years of comprehensive experience in residential, commercial, townhome, condominium, and luxury community management. Known for her hands-on approach and exceptional responsiveness, Erin is deeply involved in the day-to-day operations of the communities she serves—she believes that strong management starts with accessibility, clear communication, and follow-through.

Erin excels in conflict resolution, vendor coordination, and guiding HOA boards through complex decisions with clarity and confidence. She regularly leads board meetings, advises board members on best practices and governance, and serves as a trusted partner in both strategic planning and daily community needs. Her ability to balance professionalism with a warm, people-first approach allows her to build strong relationships with board members, homeowners, and vendors alike.

Actively involved in the Community Associations Institute (CAI), Erin stays current on industry trends and best practices and contributes thought leadership through articles published in Community Trends Magazine. A lifelong New Jersey resident who grew up in Roxbury, Erin brings a deep understanding of local communities and a genuine passion for helping them thrive. She enjoys working closely with boards and residents to create well-managed, cohesive communities where people are proud to live and invest. Outside of work Erin enjoys gardening and spending time with her family.

SARA PETERSON Property Manager

ERIN SPILIOTOPOULOS Owner - Head Property Manager

ERIN SPILIOTOPOULOS Owner - Head Property Manager

Sara is a Property Manager at Matrix with over four years of experience overseeing a diverse portfolio of residential and commercial properties, including townhome, condominium, and high-rise communities. Born and raised in Sussex County, New Jersey, Sara brings a strong understanding of local communities and a steady, leadership-driven a

Sara is a Property Manager at Matrix with over four years of experience overseeing a diverse portfolio of residential and commercial properties, including townhome, condominium, and high-rise communities. Born and raised in Sussex County, New Jersey, Sara brings a strong understanding of local communities and a steady, leadership-driven approach to property management.

Throughout her career, Sara has supported numerous HOAs and currently manages multiple associations. She is known for building strong, professional relationships with board members and guiding them through both daily operations and long-term community goals. She works closely with boards to improve association performance, enhance resident satisfaction, and maintain well-run, attractive communities. Her experience with complex properties, including 50+ and mid-rise buildings, allows her to navigate operational challenges with confidence, organization, and attention to detail.

A graduate of Montclair State University, Sara holds a bachelor’s degree and is actively working toward earning her industry designations. She brings a high level of professionalism, intellect, and accountability to her role and is committed to continuous growth within the property management field. Sara enjoys collaborating with boards and residents alike and takes pride in helping associations thrive through strong leadership and thoughtful management. Outside of work, she enjoys spending time with her family and their Australian Shepherd dog.

JENNY HOLLINGSWORTH Property Manager

ERIN SPILIOTOPOULOS Owner - Head Property Manager

ALLISON SWIFT Administration, Marketing & Design

Jenny is a Property Manager at Matrix Property Management Group who joined the team in July 2024. She brings a unique and valuable background to her role, having previously served as a police officer in North Carolina for eight years before relocating to New Jersey in 2020. Her experience in public safety, leadership, and working with div

Jenny is a Property Manager at Matrix Property Management Group who joined the team in July 2024. She brings a unique and valuable background to her role, having previously served as a police officer in North Carolina for eight years before relocating to New Jersey in 2020. Her experience in public safety, leadership, and working with diverse populations strongly informs her calm, structured, and people-focused approach to property management.

Jenny currently manages multiple communities and is actively working toward obtaining her industry designations. She is highly engaged with the Community Associations Institute of New Jersey (CAI-NJ), where she regularly attends meetings and participates as a member of the Golf Committee. Known for her professionalism, accountability, and attention to detail, Jenny has a strong focus on maintaining order, supporting effective operations, and prioritizing the safety and well-being of residents and communities.

In addition to her role at Matrix, Jenny provides security services for an HOA community in Sussex County, further strengthening her expertise in safety, compliance, and community operations. She is passionate about continuing to grow her knowledge within the property management field and takes pride in serving communities with integrity and care. Outside of work, Jenny enjoys spending time with her family, golfing, and walking with her two dogs.

ALLISON SWIFT Administration, Marketing & Design

ALLISON SWIFT Administration, Marketing & Design

ALLISON SWIFT Administration, Marketing & Design

Allison joined Matrix in September 2022 and brings more than 20 years of experience as an artist, designer, project manager, and administrative professional. Her diverse background allows her to play a key leadership role in supporting both the operational and marketing sides of the company while contributing to Matrix’s continued growth 

Allison joined Matrix in September 2022 and brings more than 20 years of experience as an artist, designer, project manager, and administrative professional. Her diverse background allows her to play a key leadership role in supporting both the operational and marketing sides of the company while contributing to Matrix’s continued growth and brand development.

Since joining Matrix, Allison has been instrumental in implementing the HOA logo and website design, building and managing Matrix’s website & social media presence, and overseeing all print and digital advertising efforts. She manages the firm’s marketing initiatives with a strategic and detail-oriented approach, ensuring consistent branding, clear communication, and strong visibility across platforms.

Allison has also developed a deep understanding of Matrix’s resident portal software and has streamlined access through association websites. Her ability to combine creativity with organization and technology has improved both internal efficiency and the resident experience. Passionate about her work, Allison is always seeking innovative ways to strengthen the company and support the communities Matrix serves. Outside of work, she enjoys art, reading, and spending time with her family.

BARBARA COPPOLA-SOSA Receptionist

ALLISON SWIFT Administration, Marketing & Design

HOLLY O'MAHONEY Accounting & Finance

Barbara has been a valued member of Matrix for over nine years and is a key part of the administrative leadership team. With more than 40 years of experience in customer service and the real estate industry, including office management, Barbara brings deep institutional knowledge, reliability, and professionalism to the firm’s daily opera

Barbara has been a valued member of Matrix for over nine years and is a key part of the administrative leadership team. With more than 40 years of experience in customer service and the real estate industry, including office management, Barbara brings deep institutional knowledge, reliability, and professionalism to the firm’s daily operations.

Serving as a primary liaison between HOA boards, residents, and property managers, Barbara plays a critical role in ensuring clear communication and efficient support across all communities managed by Matrix. She oversees the owner census, maintains accurate records within the resident portal software, and serves as a first point of contact for incoming calls—making sure every caller receives prompt assistance or is directed to the appropriate team member. Her ability to balance organization, responsiveness, and problem-solving helps keep operations running smoothly.

Barbara is fundamental to the success of Matrix and is known not only for her exceptional support and attention to detail, but also for her warm demeanor and witty personality. Outside of work, she is a proud mother and grandmother and enjoys spending time with her family and her dog.

HOLLY O'MAHONEY Accounting & Finance

ALLISON SWIFT Administration, Marketing & Design

HOLLY O'MAHONEY Accounting & Finance

Holly is the Financial Specialist at Matrix Property Management Group’s Succasunna office and is currently in her 18th year with the company. With a Bachelor of Science degree in Accounting and 25 years of accounting experience, Holly brings exceptional financial expertise and consistency to Matrix’s operations. Her background includes no

Holly is the Financial Specialist at Matrix Property Management Group’s Succasunna office and is currently in her 18th year with the company. With a Bachelor of Science degree in Accounting and 25 years of accounting experience, Holly brings exceptional financial expertise and consistency to Matrix’s operations. Her background includes nonprofit and corporate accounting, giving her a well-rounded perspective on financial management across different organizational environments.

Holly oversees all association bank accounts, including receivables and vendor payments, and works closely with property managers and HOA boards to develop accurate, responsible annual budgets. She also manages association delinquencies with a proactive, strategic approach aimed at reducing legal costs and strengthening the financial health of the communities Matrix serves. 

Her attention to detail, institutional knowledge, and collaborative style make her a trusted resource for both internal teams and board members.

Holly plays a critical role in supporting sound fiscal management and long-term stability for each association. Outside of work, she enjoys watching hockey and spending time with her husband of over 25 years and their two children.

MARY ANN JENNINGS Accounting & Finance

MARY ANN JENNINGS Accounting & Finance

MARY ANN JENNINGS Accounting & Finance

 Mary Ann has been a valued member of Matrix Property Management Group for over eight years and supports associations from the Somerset office. She holds a Bachelor of Science degree in Accounting and brings more than 25 years of accounting experience to her role, providing reliable financial oversight and support to both property manager

 Mary Ann has been a valued member of Matrix Property Management Group for over eight years and supports associations from the Somerset office. She holds a Bachelor of Science degree in Accounting and brings more than 25 years of accounting experience to her role, providing reliable financial oversight and support to both property managers and HOA boards.

Mary Ann is responsible for monitoring homeowner accounts and vendor billing, as well as managing bank reconciliations, journal entries, annual budgets, and the preparation of detailed financial statements. Her thorough, organized approach ensures accuracy, transparency, and consistency. She works closely with managers and board members to support sound financial decision-making and the overall financial health of each association.

Known for her professionalism and attention to detail, Mary Ann plays a key role in the day-to-day financial operations at Matrix. Outside of work, she enjoys balancing her professional responsibilities with travel and spending time with her husband of 29 years, their dog Elliot, and, whenever possible, their two children.

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