There’s another low-tech, low-cost, low-risk business based on government auctions of foreclosed properties. Very often when a city or county confiscates a property and sells it for back taxes or outrageous code enforcement fines the owner can’t possibly pay, the auction proceeds bring in way more than enough to cover what the county or city was owed. BUT generally that government office will sit on the full proceeds without any obligation to return the remainder to the former owner. And generally that owner is devastated and has no idea of his/her legal rights to that overage.
There is quite a business in many states (not all) where a trained person can make a business of finding such overages, forcing the government office to turn over the overage amount, and collecting a fee for returning the majority of such overages to the former owner. It is an honorable business that often provides desperately needed relief to the dispossessed. One attorney who teaches that tax overages business is Bob Diamond …an easy lookup for those interested.