I think part of the problem is that things that are tolerated in the University District (crazy parties, lots of trash, sun bathing on porch roofs, passing out on front lawns, upholstered lawn furniture, etc) would not be in other neighborhoods. Who would want to live near that?
That's kind of a strange way to phrase that. Those things are not "tolerated" - they are the activities that the tenants who live in those homes choose to participate in, and they are well within their rights to do so. Neither the landlord nor the police would be permitted, much less obligated, to stop them. Tenants are afforded certain rights of enjoyment (of their home) under Ohio law, and you don't get to trample on those just because you don't like them or their demographic. Unless of course those activities become illegal (or loud enough to interfere with a neighbor tenant or homeowner's quiet enjoyment of his own home) - in which case the police would handle it.
You may not like the things students like to do in their free time, but the landlords don't really have anything to do with that. Not that campus landlords aren't guilty of any number of other transgressions though!