>Cursory Violations
No sprinklers.
Sprinklers restricted or covered.
Exits not clearly marked.
Extension wires used in a permanent application.
Excessive electrical connections with a small panel.
No 5/8" drywall for a fire barrier.
Uncovered holes in ceilings.
No smoke detectors.
No emergency lighting.
No certificate of occupancy.
No permits for remodeling or building additions.

>In-Depth Hazards from DIY-ers
https://docs.google.com/document/d/1XtBIjVjf3kiyCtLZcFcEBR2dv-KIPBCYIA-IZurDZLg/edit