Company Overview – Management Team

The Stevenson, Williams Management Team 

Robert W. Stevenson


Email: [email protected]

Phone: 412-531-6000 x 110


Since 2005, Rob has served as the President of Stevenson, Williams Management Company as well as the President of its parent company, Stevenson, Williams Company. In addition to

overseeing the operations of the company, Rob is also one of its association managers.
Rob has served on the Upper St. Clair Planning Commission since being appointed in 2007 and was its Chairman in 2010 and 2016. Additionally, he enjoys volunteering his time coaching various sports within the Upper St. Clair Athletic Association and currently serves as a Board member.
Rob is a 1991 graduate of The Pennsylvania State University.  


Kevin Warmbein



Phone: 412-531-6000 x 102



Donald Angel

Property Manager/Insurance Sales

Email: [email protected]

Phone: 412-531-6000 x 106


Don joined Stevenson,Williams in 2005 as

a rental property manager, a role he still holds

today. He manages over a dozen properties,

covering more than100 units. Don became

licensed in Property/Casualty Insurance in 2006

and is also part of the Stevenson,Williams

Insurance Agency offering competitive home/

auto/renters and small business insurance.
Don serves on the Board of Management for the Deer Valley YMCA Family Camp.
Don is a 1991 graduate of The Pennsylvania State University.

Diane Lyda
Executive Assistant
Email: [email protected]



Mike Miller
Assistant Controller
Email: [email protected]

Phone: 412-531-6000 x104

With over 25 years of management experience, Mike joined the Stevenson, Williams team in 2016. Mike is a graduate of The University of Pittsburgh and earned an MBA from Marylhurst University. In addition to his accounting responsibilities, he oversees all aspects of our community website program and facilitates communication between homeowners, association councils, and management.


Beverly Maroney

Community Covenants Compliance Facilitator

Email: [email protected]
Phone: 412-344-3300

Bev has a wide range of community association management experience. In her current position, Bev helps to ensure the rules and regulations of the communities we manage are being followed in accordance with the specific governing documents of each community. Bev's personal intervention has dramatically decreased the amount of time between when a violation has been reported to when the violation has been corrected. Her helpful methods of educating an owner or resident regarding the violation has greatly reduced the number of repeat violations in each community.  


Kathy Plumb
Office Manager
Email: [email protected]


Angela Kay
Vice President
Email: [email protected]
Phone: 412-531-6000 x 111

Angela has more than 25 years of property management experience and has worked with Stevenson, Williams Company since 2009. In her current position, Angela is responsible for overseeing the day to day operations of the managers and support staff of the company and has daily interaction with the Board members and owners of the communities we manage. She also plays a key role in assisting Mr. Stevenson with the communities he personally manages. 
Angela is a 1991 graduate of Duquesne University.


Jeff Walter



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