METRO MLS TEAM
Meet the Metro MLS Board of Directors, Staff and Local Associations.
BOARD OF DIRECTORS
CHRIS LAMBROU
CHIEF EXECUTIVE OFFICER
Metro MLS
CHAIRMAN
Shorewest Realtors, Inc.
VICE CHAIRMAN
First Weber Group
PAST CHAIRMAN
Dave Schmidt Realty
EXECUTIVE COMMITTEE
First Weber Group
SARAH COLE
Landmark Realty
ABBY HAUKE
Realty Executives Integrity
TINA BALAKA
JUDY HEARST
Coldwell Banker Realty
SSWRA
Gonnering Realty Inc.
OZ
RE/MAX United
LARA
Compass
MIKE RUZICKA
GMAR
STAFF
CHIEF EXECUTIVE OFFICER
ABOUT ME
Chris Lambrou currently serves as the CEO of Metro MLS in Milwaukee and has more than 26 years of experience in the multiple listing service industry. Since joining Metro MLS in 2016 as Chief Information Officer, he has led the organization’s modernization efforts, driving technological innovation and optimizing internal operations. In April 2025, he was appointed Interim CEO and then the permanent CEO in December 2025, where he continues to champion a service-first, results-driven approach to leadership.
A recognized thought leader in real estate technology, Lambrou played a key role in the founding of MLS Aligned, a strategic collaboration of six forward-thinking MLSs. He spearheaded the development of Aligned Showings, a modern scheduling platform now serving over 150,000 users nationwide. For his forward-looking contributions, he was named a 2025 RISMedia Newsmaker “Futurist.”
Lambrou’s influence extends beyond Metro MLS. He chairs workgroups for the Real Estate Standards Organization (RESO) and the Institute of Electrical and Electronics Engineers (IEEE). He serves on the Customer Experience Advisory Board at the University of Wisconsin–Parkside. His passion for improving user experiences in real estate technology has also made him a sought-after speaker at events such as Inman, CMLS and RESO, as well as at academic institutions including Northwestern University, New York University, Marquette University and MIT.
Outside of tech, Chris is an accomplished musician, a baseball enthusiast, and, most importantly, the proud father of two. He lives by a guiding principle: surround yourself with good people in an open environment and success will follow.
METRO MLS
CHIEF OPERATING OFFICER
ABOUT ME
NICOLE ERTL
EXECUTIVE MANAGER
ABOUT ME
Nicole Ertl joined Metro MLS as its Executive Administrative Assistant in May 2024. She has an extensive background in providing strong administrative support to business executives. Nicole loves warm weather and everything you can do outside when it’s above 70 degrees!
Communications
DAN ZIELINSKI
DIRECTOR OF BROKER OUTREACH
ABOUT ME
Dan Zielinski currently serves at Metro MLS’s Director of Broker Outreach, overseeing the organization’s relationships with brokers and association and managing marketing and communications. He joined Metro MLS in 2020. Producing quality, engaging, and informative content across digital and print platforms that help a company accomplish its mission motivates him. Dan enjoys golfing, hiking, fishing, and playing tennis. He also is an avid sportswriter, which has consisted of national media outlets quoting his work.
Accounting
KATI BIESZK
DIRECTOR OF COMPLIANCE
ABOUT ME
SYSTEMS ADMINISTRATOR
ABOUT ME
Mikyla Chapp
DATA INTEGRITY SPECIALIST
AND RULES ADMINISTRATION
ABOUT ME
Mikyla Chapp joined Markt as a Technical Support Specialist on Dec. 7, 2020. In her free time, she enjoys making jewelry, crochet and reading. Mikyla is passionate about providing the best customer service to help members have a quality experience with the MLS. Kind, friendly and fun are three words she believes describe herself.
KAMISHA CARTER
DATA INTEGRITY/SUPPORT SENIOR SPECIALIST
ABOUT ME
Kamisha Carter joined Metro MLS as a Data Entry Clerk and Rules Administrator in December 2021. One fun fact about Kamisha is that she is the oldest girl of 15 children. She loves to sing, create art and volunteer in her free time. Compassionate, honest and trustworthy are three words she believes describe herself.
ACCOUNTING
MARIA CHRISTON
SUPPORT SPECIALIST
ABOUT ME
Technical Support
JAKE LANNAN
TECHNICAL SUPPORT ANALYST
ABOUT ME
Jake Lannon has worked as a Technical Support Analyst at Metro MLS since 2016. Outside of work, Jake enjoys spending time with his wife and children. He also is passionate about weightlifting, home renovation projects, and working on his truck. Perseverant, introvert, and insatiable are three words that he believes describes himself.
Technical Support
ANGELA WASHINGTON-MARSHALL
TECHNICAL SUPPORT ANALYST
ABOUT ME
Angela Washington-Marshall serves as a Technical Support Analyst at Metro MLS, a position she has held since 2002. Outside of work, Angela occupies her time by reading biographies, watching movies, listing to music, and traveling. Loud, passionate, and humorous are three words she believes describes herself.
Metro MLS
SAMANTHA OLEXA
DIRECTOR OF DATA LICENSING
ABOUT ME
Samantha joined Metro MLS as its Director of Risk Management in 2025. Her passion for real estate began in 2012 and continues to flourish, as her experience in property management and commercial lending set a solid foundation for her career as a real estate attorney. In her free time, Samantha loves to cook, listen to music, and watch movies.
Metro MLS
JORDYN WILLIS
CONTRACT SPECIALIST
ABOUT ME
Jordyn Willis joined Metro MLS as a Contract Specialist in March of 2026. Jordyn is eager to provide others with a great experience at Metro MLS and is extremely passionate about her work. She is currently pursuing an associate’s in legal studies and aspires to obtain a bachelor’s degree in Pre-Law. Jordyn enjoys reading, being active, and matcha.
Tax Information
WIREDATA SPECIALIST
ABOUT ME
Tax Information
Tim Kosteretz
OPERATIONS MANAGER
ABOUT ME
Kosteretz’s career includes work as a baker and social studies teacher, a realtor and real estate appraiser, and 27 years as a property tax assessor in state and local government. He is known for simplifying complex issues, encouraging discouraged people and bringing order to messy systems, including raw data.
Outside of work, Kosteretz is an avid reader and maritime history enthusiast. He is also a jack-of-all-trades handyman and aspiring luthier; his first handmade guitar looks great but does not hold a tune. Active in his church, he is a certified chaplain who works in spiritual care, grief, trauma and recovery, addiction, conflict resolution and post-traumatic stress. Most recently, he has volunteered in senior care and as a mentor to an ex-offender reentering society after incarceration.
Tax Information
MIKE BLAHA
SOFTWARE ENGINEER
ABOUT ME
Mike Blaha joined Markt as a Software Developer in August 2021. He describes his hobbies as reading and gaming and is passionate about “building things to make life easier.”
Tax Information
DATA PROCESSOR
ABOUT ME
Technical Support
LORI KENDRICK
CUSTOMER SUPPORT SPECIALIST
ABOUT ME
Lori Kendrick has been an entrepreneur for more than 30 years, building her career in cosmetology and real estate, specializing in both new construction and residential sales. Before venturing into entrepreneurship, she worked in the health and medical claims processing industry. In her free time, Lori enjoys cooking and exploring new cuisines. She loves relaxing at home with her husband, their high school senior daughter and their two-year-old German Shepherd, Judah.






