I have done a lot of rental inspections in Baltimore City, and I have watched more landlords than I can count fail their inspection over the same handful of items. None of these failures are dramatic. They are small things. A smoke detector that beeps when you push the test button but does not actually pass the city's spec. A window that opens but does not have an egress release the way the code reads. A handrail that has been wobbly for six years.
The frustrating part is that almost every one of those failures is fixable in an afternoon. Below is the short list I would hand any landlord who calls me a week before their inspection date.
1. Replace your smoke and CO detectors before you do anything else
Baltimore City code requires hardwired, interconnected smoke and carbon monoxide detectors in most rental properties built since the 1970s. If your unit was wired for hardwired alarms, you cannot swap to battery-only and expect to pass. If your unit was not wired for them, the city now requires sealed 10-year battery combo units in specific locations.
The two models I recommend most often:
- Kidde P4010ACSCO-W - hardwired with wireless interconnect and 10-year sealed battery backup. Worth the extra money because you never need to climb a ladder to swap batteries.
- First Alert 10-year sealed battery combo - for units that were never wired for hardwired detectors.
Pick the right one for your wiring situation. Install one on every floor, one in every sleeping area, and one within 15 feet of any bedroom door. Label the date you installed each unit on the back with a Sharpie so the inspector can verify the 10-year clock.
2. Walk every window with a tape measure
The rental code wants every habitable room above the basement to have a window that opens for emergency egress. The minimum opening is 5.7 square feet for upper floors, and the bottom of the window cannot be more than 44 inches off the finished floor.
You would be amazed how many landlords miss this on the third floor of a 1920s rowhouse. Old double-hungs with painted-shut top sashes are a common fail. Pry them open, scrape the paint, and confirm the window actually slides through the full travel before the inspector shows up.
3. Check every handrail and every step
The inspector is going to put a hand on every rail on the property. If anything wiggles, it fails. Tighten the bolts, replace the lag screws into solid framing, and add a second mount point if the run is longer than 30 inches.
Steps with more than three risers need a rail on at least one side. Treads that have rot, splinters, or visible separation will be called out. A $20 piece of pressure-treated 2x4 and a few screws will save you a return inspection fee.
4. Make the breaker panel readable
Open your panel. Look at the labels. If they say "kitchen?" or "outlets," you have work to do. Every circuit must be labeled clearly enough that another electrician could trace it without a meter. Get a label maker, do a fifteen-minute exercise where you turn breakers off one at a time and walk the unit, and label everything.
Also: no double-tapped breakers, no open knockouts in the panel cover, no missing dead-front screws. These are easy fixes that fail inspections every week.
5. Plug a tester into every outlet
Buy a $12 three-light outlet tester at any hardware store. Plug it into every outlet in the unit before the inspector arrives. Open neutral, open ground, reversed polarity, hot on neutral - all of those fail the inspection. Each one is also fast to fix for someone with basic electrical experience, or quick to call out to your electrician if you do not want to touch it yourself.
GFCI outlets in kitchens, bathrooms, garages, and any outdoor location need to actually trip when the test button is pressed. Older GFCIs lose their reset function over time. If yours feels mushy when you press it, replace it now.
A small note on the inspection itself
The inspector is not trying to fail you. The handful I work with regularly are looking for the items that actually keep tenants alive - working smokes, working egress, no live wires in places they should not be. If you take a Saturday and walk the property with this list in your hand, you will catch most of what they would have caught, and the inspection becomes a thirty-minute formality instead of a return visit.
If you want a second set of eyes before the city's inspector arrives, we run pre-inspection walkthroughs. Either way, do the walkthrough yourself first. It is the cheapest hour of your week.