I was very excited to sit down with Mark Podolsky, The Land Geek, to talk about his side-hustle-turned-full-time-biz of investing in raw land. In fact, he was able to replace his day job income and quit his job only 18 months after starting. Mark calls it the best passive income model because you don't have to worry about building a website, building a product, dealing with tenants, dealing with repairs, or selling a service.