Getting rid of trees in Detroit for free may be a challenging task. However, there are a few options to consider. One option is to check with the City of Detroit's Department of Public Works or the Parks and Recreation Department to see if they offer any offer free tree removal services for residents. Another option is to inquire with local tree removal companies or arborists if they have any programs or initiatives in place for offer free tree removal in certain circumstances. Additionally, reaching out to community organizations or non-profit groups that focus on environmental conservation or urban forestry may provide some resources or assistance in removing trees for free.