How are you going to do maintenance calls, tenant screening and showing when vacant, do move in / out inspections and handle other tenant concerns from 5 hours away? (biggerpockets.com)
You'll have your day job, and then come home to work on things like answering tenant concerns, drafting contracts, working with realtors, and cutting the grass. (greenresidential.com)
They're also helpful for early warning of tenant concerns such as no hot water, allowing you to resolve the problem faster and potentially without after hours fees from a plumber. (effectivecoverage.com)