Note that the NEC now requires a GFCI for refrigerators but many local inspectors allow you not to do this because if the thing nuisance trips, all the food will go bad.

Make sure you check more recent landlords regarding on-time payments and any other issues (e.g. nuisance calls).

There are some liens that survive the tax deed auction.Government/IRSCity/County (nuisances, etc..)You need to physically drive the property. 

Nuisance things: paint, wallpaper (very annoying), holes in drywall, smells (unless it is a sign of mold), cracked windows, missing or damaged screens, no GCFI, flooring, broken handles, damaged cabinets, interior doors on exterior entrances (I see this a lot), bowls under sinks to catch leaks, general run-down-unlovedness.

Sometimes you may want to pay nuisance value to get rid of a frivolous lawsuit. 

You will want to hire a pest control company for the WDO inspection, and if the home is vacant it's not really an issue, but if it's occupied, it's a nuisance to schedule inspections at different times to inconvenience the seller. 

You do not want to become a nuisance.

I currently have a 4 unit complex in Dallas Texas.  A new tenant just moved in and the other tenants have complained about the smell of pot resonating to their units.I have communicated to the new tenant about other t...

Rather than being a "nuisance" call, I approach it as a chance to make sure we keep our units in the best condition to encourage our good tenants to stay.

Also, from a board and on-site owner's perspective, investors that move tenants in and out without notifying management, without following the proper move-in and out procedures and that don't explain the community rules to their tenants quickly annoy become a nuisance.