About Us

Robert Dell’Osso has been involved in real estate and property management for most of his life. Having grown up in the industry, he understands both the owner’s perspective and the property manager’s perspective. As the founder of MasterKey Property Management, he has successfully grown the company while establishing himself as a knowledgeable resource on investment properties in the Triangle. Robert has resided in the area since 2000, holds a North Carolina Real Estate Broker’s License, and is the Broker-in-Charge of MasterKey Property Management.

Robert is actively involved in the National Association of Residential Property Managers (NARPM) and holds the Residential Management Professional (RMP) designation. He currently serves as President-Elect for the Triangle NARPM Chapter (2025) and is the Government Affairs Committee Chairman for the chapter. At the national level, he is a 2025 NARPM National Government Affairs Committee Member and will serve as Vice Chair for the NARPM Capitol Summit in 2026.

Cheryl Dell’Osso, a licensed North Carolina real estate broker, serves as Chief Operating Officer for MasterKey Property Management. She leads the company’s operations, marketing, and strategic growth efforts, with a strong focus on optimizing internal systems and streamlining cross-team collaboration.

Leslie Lewis serves as our Business Development Manager, bringing over 20 years of experience in building strong business relationships and expanding our client base. She is highly skilled in fostering connections, understanding client needs, and delivering tailored solutions. Known for her exceptional communication and commitment to client satisfaction, Leslie ensures a seamless experience for property owners seeking professional management services. A native of Wake Forest, NC, she possesses in-depth knowledge of the Triangle area and its evolving real estate market. Contact Leslie to explore how our property management services can support your investment goals.

Ligia Pinto Merett is MasterKey’s Senior Property Coordinator, playing a key role in keeping our operations organized and efficient. She oversees tenant compliance, coordinates property turnovers, manages lease renewals, and supports the onboarding of new tenants—all while ensuring every property in our portfolio is handled with care and precision. She is instrumental in ensuring that our internal processes are not only effective but clearly documented, helping the entire MasterKey team deliver consistent, high-quality service.

Karen Belmonte is a valued Property Coordinator at MasterKey Property Management, responsible for managing lease renewals, move-ins and move-outs, tenant compliance, and documentation. She works closely with Assistant Property Managers and vendors to ensure efficient coordination across all aspects of property operations, maintaining accuracy, clear communication, and timely execution.

Sierra Johnson is our Assistant Property Manager. She is a Michigan native with six years of property management experience. She’s always enthusiastic about assisting the team and our clients with quality assurance to ensure the properties we manage are kept in excellent condition. Her number one priority is to provide outstanding service to all clients!

Yesenia Cuevas is a highly skilled property manager with a strong background in construction management. With over five years of experience in the field, she brings expertise in project coordination, maintenance oversight, and property renovations. Her ability to coordinate property turnovers ensures that properties are maintained to high standards, which is crucial for attracting and retaining tenants. Yesenia’s combined knowledge of construction and property management makes her a valuable asset in ensuring the efficient and effective management of properties.