Management Profiles

The Principals 

Donna Shammas, CPM®, has 41 years of professional experience in property management, specializing in low-income housing.  Her past positions include Director of Property Management - Assisted Housing for Eastland Property Management Co. of Warwick, RI.  She is a graduate of the University of Massachusetts and is a Certified Property Manager®.  She is the co-developer of MicroHUD, the first computerized system for processing tenant certifications and related HUD subsidy paperwork.  Ms. Shammas is a past Vice President of the Greater Rhode Island Chapter of the Institute of Real Estate Management.

Mark A. Shammas, CPM®, CPA, has been involved in the financial and operational aspects of both residential and commercial property management for 33 years.  His former positions include Chief of Field Operations and Director of Finance with Eastland Property Management and Senior Accountant in the Audit Department at Price Waterhouse.  A graduate of Bryant College, he is a Certified Property Manager® as well as a Certified Public Accountant.  Mr. Shammas is a past    Vice President of the Greater Rhode Island Chapter of the Institute of Real Estate Management.

Senior Staff

Kathleen Manzi, CPM®, Senior Property Manager, has over 25 years of property management experience.  Prior to joining Phoenix, Ms. Manzi worked for several area Realtor® firms, including RE/MAX and Yorktown Associates.  She is a graduate of the University of Rhode Island.  Ms. Manzi is a Certified Property Manager®  and a past Treasurer of the Greater Rhode Island Chapter of the Institute of Real Estate Management.  Email Kathleen.

John M Byrne, CPM®, Senior Property Manager, has specialized in residential property management for 30 years, both in the U.S. and in his native Ireland.  He has worked previously for Clarke Cooke, Inc. of Newport, RI.  Mr. Byrne was educated at Christian Brothers College, Cork, Ireland.  He is a Certified Property Manager®Email John.

James O’Brien, CPM®,  Senior Property Manager, is a graduate of Johnson and Wales University and is a Certified Property Manager®.  Prior to joining Phoenix in 2006, Jim worked for 5 years at Rhode Island Housing as a Multifamily Compliance Specialist and Contract Administrator.  While at Rhode Island Housing, he became a Certified Credit Compliance Professional for the Low Income Tax Credit Program.  Jim’s background also includes work in real estate sales with Yorktown Associates.  Email Jim.

Allison Serina, ARM®, Senior Property Manager, has over 12 years of property management experience.  A graduate of Assumption College, she was previously employed as a Management Program Officer for the Maine State Housing Authority. Ms. Serina is an Accredited Resident Manager®  and a member of the Greater Rhode Island Chapter of the Institute of Real Estate Management.  Email Allison.

Lynne Heidtman, Senior Resident Services Coordinator, has 35 years of experience in social services.  She worked most recently for the Town of North Kingstown, RI, as Manager of Outreach servicing the needs of the age 55 and over population.  Her prior employment included positions with VNS Home Care of Narragansett, RI, the Spurwink School, and Bridges, Inc., in Jamestown, RI.  Ms. Heidtman holds a BA in social welfare from Rhode Island College.  Email Lynne.

Tom Beattie, PHR, Senior Administrator, is an accredited Professional in Human Resources.  He has been active in the industry for 34 years, having been previously employed as Director of Administration at Eastland Property Management.  Mr. Beattie is an MBA graduate of the University of Rhode Island and has taught in its College of Business Administration.  Email Tom.