Some of the new LED bulbs don't even last as long as incandescent ones.

Edison tried 10,000 times before he got the incandescent lamp to work .

That's a fire hazard & renders any assumption of grounding moot & Bldg Inspectors will look for it.If you leave it 'as is', my suggestion is to install LED lighting throughout to avoid the high heat created by incandescent lighting fixtures that are spec'd for 60W & the tenants put in 100+W bulbs.

I budgeted to do some of the work myself (swap out incandescent for updated lighting, all demo and haul away and install the cabinets and counters).

He said he put an incandescent bulb in the bathroom and it just burned out.

Get 2 60 watt and one 75watt incandescent light bulbs. 

I dont really like paying for a bunch of little pint paint samples but even what looks like builder beige can change once you get it into natural or incandescent light.I have 5 gallons of builder(pink) beige that is now my primer coat on dark walls before i put on a coat of actual builder beige on for the final coat.

We give the tenant the choice of CFLs or incandescent bulbs.

Switching all common area / public lighting bulbs from incandescent to CFL or LED.

You use to have to settle for incandescent lighting and CRT picture tubes.