Administrative Staff

    Amber Peters

    Marketing Director | Executive Assistant to James Mattz

    O): 708-249-3160


    Amber joined The Mattz Group in April 2017 as our Marketing Director.  She handles the onboarding of all listings while formulating and executing our marketing strategies with social media outreach to give our listings a superior market presence and competitive edge.

    Amber began her real estate career as a marketing assistant in 2005 with Century 21.  She has a full range of knowledge in all areas of our office support staff.  Her background also includes residential and commercial real estate transactions.



    John Tomasula

    Operations Director | Contract Negotiator

    O): 708-249-3140


    John joined The Mattz Group in 2015.  He serves as the Operations Director in coordinating all activities of The Mattz Group.  He is the lead evaluator of talent and group trainer for new associates.

    In addition to his Operations role, John handles all negotiations for incoming contracts on our active listings.

    John has held a variety of functions to support the team including buyer specialist and executive assistant.


    Angela Hall Williams

    Client Care Specialist | Transaction Manager

    O): 708-249-3161


    Angela joined The Mattz Group in early 2019 as our Client Care Specialist and Transaction Manager.  She is focused on providing outstanding customer service to both our seller and buyer clients while guiding them through their real estate transaction.

    Prior to joining the team, Angela worked as a Staff Attorney and real estate broker with a focus on residential real estate transactions.She has served as Litigation Counsel at the Attorney Registration & Disciplinary Commission as well as a Cook County Public Guardian.