The short answer: DIY makes sense for a hands-on owner near the property who knows the law. A manager pays for itself when you value your time, live out of the area, own multiple units, or can't afford a costly compliance mistake.
When self-managing works
One or two local units, time to handle showings and 11 p.m. maintenance calls, and a solid grasp of deposit rules, notices, and the eviction process. Plenty of owners do it well.
When a manager pays for itself
Out-of-state ownership, multiple doors, a demanding day job, or simply not wanting to be on call. The math is straightforward: the fee versus your time, plus the cost of vacancies filled slowly and the very real risk of a mistake that voids a deposit claim or an eviction. A free rental analysis shows you both sides for your property.