The lifelong Livonia resident graduated from Bentley High School and Madonna University with a bachelor of science degree in dietetics. She is a registered dietitian who worked at the University of Cincinnati and University of Michigan medical centers in the cardiac surgery and rehabilitation departments.

Marecki served on the Livonia Public Schools' Board of Education, including as vice president and secretary, from 2001 to '03. She served on the Livonia City Council from 2004 to '10, including the final two years as vice president, and Livonia city clerk from 2010 to '14.

She has volunteered for years in her hometown and is active with the Livonia Community Foundation, Livonia Prayer Breakfast Committee, Community Opportunity Center advisory board, the Livonia Public Schools Education Foundation as an honorary board member and as a trustee on the Madonna University Committee on Planning and Mission Effectiveness. Her family attends Oak Pointe Church in Novi.

Marecki and her husband, Mark, have four children and two grandchildren.