VisoneCo Site Development | Built on Grit, Growing with Vision. At Stonewall Property Management, we're proud to serve Western New York as a vertically integrated, full-service property management company. Working alongside VisoneCo Site Development and with over 35 years of experience, we manage more than 300,000 square feet of real estate across residential, multi-family, commercial, industrial, COA (condominium associations), HOA (homeowners associations), Vacation properties in WNY and Costa Rica and REO (real estate owned) properties. Guided by our mission - Creating properties of distinction for the betterment and prosperity of our communities - we're committed to managing each property with integrity, care, and a dedication to excellence.