Two things you need. First to report overgrown grass/weeds use this link http://www.pontiac.mi.us/departments/public_works/weeds.php Second to request action from the Sheriff's office use the form at this link http://www.oakgov.com/sheriff/Documents/request_for_action_form.pdf fill it out and take it to the desk sargent at the Sheriff's substation downtown. Both can be done anonymously. Calling building and safety is a good start too. Especially since you're talking about major building code violations. You might also try the county health department. If there's no water, there's no plumbing. That part of Fairmount is in District 3. Your council representative is Mary Pietila her email is mpietila@pontiac.mi.us and her phone # is 248-758-3019. Contact her and if you don't see some kind of improvement in a reasonable amount of time call her again and remember that city elections are coming up. These tools should get you some kind of results if you use them and especially if you can get other neighbors involved to help out.