[TotalCrackpot]

I think it depends on local customs and local agreements, it can differ. I guess I could consider a house abandoned if no one lives there for a year or 2. While for a mine, I think I would consider it abandoned the moment previous miners left it, such that other can get into the mine and mine some resource.

[ImJamal]

I'm a little confused. You said you want to get rid of private property but also your residence is occupied so I can't stay there. Who gave you the right to say that? If there is no private property it seems like we should be able to vote who can stay in your residence.