Mary Jo has been an advocate for manufactured-home owners since 1983 when moving to the Cabrillo Beachfront Village, located in Huntington Beach. She managed the park for a few years, and eventually became the President of GSMOL Chapter 1824 and the HOA. She also serves as the Treasurer of the Huntington Beach Mobilehome Owners Association (HBMOA).
As an active member of the HBMOA, Mary Jo helped organize and create the Huntington Beach Mobilehome Park Conversion Ordinance, zoning of all mobilehome parks in the city as MHP, and a Senior Residential Overlay Ordinance.
She is a former member of the Huntington Beach Mobile Home Advisory Board and is currently the Vice President of a civic group, Huntington Beach Tomorrow.
Since being appointed as Region 5 Manager in 2003, Mary Jo has served in various capacities in GSMOL including President, and is currently the Zone C Vice President for Los Angeles, Orange, and San Bernardino Counties. She serves as the Chair of the Publications Committee and Editor of The Californian magazine, and is an active member of other GSMOL Committees.
Currently Mary Jo is the President of the Golden State Manufactured Home Owners Education Fund (GSMOEF).