When tenants and owners feel cared for, word spreads.

Just keep your eye on the numbers, be patient, and, if the path feels a bit winding at times, remember that most of us have been right there the ones who kept at it ended up with the sweetest returns.Take care, Pat & JasperTurning investment visions into REALITY in Phoenix, AZ - Ranked #1 for residential real estate growth and opportunity by PwC

If you decide to build new construction, be very careful with builder contracts out there. 

Sometimes you have to drop everything to take care of your guest.

If there is a minor stain in need of cleaning that gets missed they can take care of that.

The other big issue here is the commercial insurance for a restaurant tenant is several times that of an office tenant. 

Since they notified you of this, you should get it taken care of as your insurance may not cover a claim if there is an accident because it was a known defect.

The short answer is I look for 9% min and try to press it to 11% with those strategies along with rental increases once improvements are made and the tenants know you actually care about the property.

Typically  issues are raised when the exterior is not kept up with / parking on grass / garbage in neighborhoods where everyone takes pretty good care of their homes.If you keep it clean and run a tight ship, you should be okay most of the time.

Your tenants need to buck up and take care of the bugs.