And you can't legally remove a hoarder. 

They aren't secrets or anything... and while they are a bit 'fringy'... they are perfectly legal as I understand it... just manipulating the credit scoring system by playing by their own rules.Hope it helps!

Will I have any legal issues.

@Amy Fortes  I am also assuming you are finding this in the legal by laws you got when you bought not an additional rules list they came up with.   

If gone unaddressed, complaints can lead to costly violations & fines.

They could be looking at the space to check legal egress, ceiling heights, window location and size, fire separation between units/hazardous areas (like boiler rooms, etc.) or a whole host of other things.

What are the closest markets where it is still legal?

Much some of the responses below, there are legal implications to consider. 

The language barrier was the most difficult piece in my experience but I also ran into legal issues where the party that defaulted on their contract was connected so there wasn’t much I could do to get what I was owed.

Neighbors can have legitimate complaints or they can make up stuff out of jealousy or for political reasons to cause you headaches.