Hi Ethan,
I just had two green card inspections in June on two of my fourplexes in Union County. One was a recent purchase and the latest owner didn't maintain it that well so I had a few items come up in one inspection that needed repair. Nothing major at all but just a list of about 5-6 items that needed to be remedied. The inspectors that i've encountered (i've had two inspections on my longest held fourplex and one on my newest) have been very courteous, informative, and straight forward about what they are looking for. For the most part they are looking at safety issues such as making sure all fire/smoke alarms and carbon monoxide detectors are functioning and interconnected where if one goes off so do the rest. Some other items they'll look for will be rusting railings, fire escapes and other metal work throughtout the property. Functioning appliances, faucets all work, any flaking paint, any exposed spackle that hasn't been painted, and making sure all common area lights are working. They'll also make sure all gutter leaders are connected, sidewalks and outdoor stairs are in good condition. They'll send you a documented list of all the items, you pay a fee online for the inspection and they'll give you an approximate re-inspection date but typically its supposed to be 60 days or so but they take longer to come back (in my experience they have so many of these to do it will be a while before they come back).
Direct message me if you'd like more info.