It is extremely unlikely the lease agreement included anything like "this rental agreement includes maintenance of the grounds to prevent needles, feces, or other undesirable conditions to be present and if present to remove, eliminate or otherwise dispose of immediately by the property management company assigned to this complex.." if it is not written in such a way, this lawsuit will be thrown out.

I wonder how many times a tenant becomes concerned about the conditions of the home when they are evicted or face a legal rate increase which will make them move. It's all good until they can't be there anymore.