Oakline Properties announced that it has acquired ResidentialOne Management and its affiliated maintenance and inspection services arm, Professional Renovations Inc.
ResidentialOne is headquartered in Columbia, Maryland and specializes in affordable housing property management.
The company was founded more than 25 years ago as Equity Management and has operated as ResidentialOne since 2015. It manages more than 12,500 units across over 120 properties in Maryland, Virginia, and Washington, D.C.
ResidentialOne is recognized for its compliance performance, including HUD inspection scores that have consistently exceeded regional market averages. Professional Renovations provides in-house inspection and maintenance services that support property owner clients with regulatory compliance and asset performance.
Oakline said the acquisition expands its national footprint and strengthens its affordable housing property management presence.
Oakline was launched in September 2025 by Alpine Investors to partner with property management companies while preserving their local brands, independence, and leadership. The company supports partners through technology, lead generation, expanded services, and access to operating and leadership talent.
ResidentialOne will continue operating under its established brand and local leadership. Tony Ross and Louis Sigalas will retain equity stakes in the company, with Ross continuing as President and Sigalas serving as CFO.
The acquisition marks Oakline’s fourth partnership since its founding in 2025. The company now has more than 80,000 units under management nationally.
ResidentialOne joins Oakline’s platform alongside Cirrus Asset Management, Drucker + Falk, and Four Star Realty.
KEY QUOTES:
“We built ResidentialOne with a commitment to doing affordable housing management the right way: through strong compliance, genuine relationships with residents and owners, and a team that takes real pride in the work. We were deliberate in choosing a partner, and Oakline’s approach to supporting local operators and investments in technology gave us confidence that this is the right next step for our team and clients.”
Tony Ross, President of ResidentialOne
“ResidentialOne is exactly the kind of company we want to partner with. Tony, Louis and the team run a high-quality operation with a demonstrated track record, differentiated service offering, and are deeply trusted by their clients and the communities they serve. This partnership expands Oakline’s affordable housing presence and brings a compliance playbook we’re excited to invest in.”
Amanda Sayigh, CEO of Oakline
