6. Rogue home repairs and roofers
Pitch: We can get that tree out once you pay us half the cost to cover it, and fix your roof for a fraction of what that other guy is going to charge you.
Target: Initial upfront fees to get the job started.
Homeowners can be stuck with either an unfinished or never-started project, and they can be out the initial money. In many cities and states, contractors and people they work with need to be licensed. Check those licenses, as well as complaints with the Better Business Bureau.