I work at a real estate office. We primarily sell houses that were foreclosed on by lenders. We aren't involved in the actual foreclosures or evictions - anonymous lawyers in the cloud somewhere is tasked with the paperwork - we are the boots on the ground that interacts with the actual walls, roofs and occasional bomb threat.

When the lender forecloses - or is thinking of foreclosing - on a property one of the first things that happens is they send somebody out to see if there is actually a house there and if there is anybody living there who needs to be evicted. Lawyers are expensive so they send a real estate agent or a property preservation company out to check. There is the occasional discovery of fraud where there was never a house on the parcel to begin with, but such instances are rare. Sometimes this initial visit results in discovering a house that has burned down or demolished, is abandoned or occupied by somebody who has absolutely no connection with the homeowner. Sometimes the houses are discovered to be crack dens or meth labs, sometimes the sites of cock or dog fighting operations, or you might even find a back yard filled with a pot cultivation that can't be traced back to anybody because it was planted in yet another vacant house in a blighted neighborhood. The house could be worth less than zero - blighted to the point where you can't even give it away (this is a literal statement, I have tried to give away many houses or even vacant lots with no takers over the years) or it could be a waterfront mansion in a gated golf community worth well over seven figures that does not include the number "one". Sometimes they are found to have been seized by the IRS, the local tax authority, the DEA or the US Marshal. Variety is the rule. The end results are the law.