Dog barking may cause noise to neighbors. 

I don't put a night shift person with a barking dog at home alone above someone trying to sleep downstairs. 

However, the tenant still has to abide by certain animal rules like cleaning up after the animal, keeping it on a leash, or not allowing it to bark and disturb neighbors.

You should also require this information is updated annually.You can still place reasonable restrictions on the animal, such as: Requiring a current (and annually updated) Veterinarian report on the health of the animal, including vaccine status; current appropriate local licensing of the animal if required in your jurisdiction; require the animal be spayed or neutered unless contraindicated by the Veterinarian; require the animal to be in a carrier or on a leash when in common areas of Multi-Family properties, particularly elevators or hallways and stairwells; require tenants to clean up after the animal in common areas and/or within their unit, and prevent offensive odors from emanating from their unit; aggressive or nuisance animals (includes frequent barking that is NOT an alert by the animal) can be cause for removal of the animal and/or eviction of the tenants.

Now that you've had this experience, you know you should ask the lender's loan range up front just to make sure you're not "barking up the wrong tree".David J Dachtera"Success is not a destination.

You are a Fundamental, Growth Stock type, who may find the exact type of property that you are looking for, but, there is a vacant lot next store full of weeds, the guy across the street has pitbulls that constantly bark and the corner house is in need of repairs and going into Foreclosure, etc.

Like when Lassie, the dog, would run to the sheriff and bark, trying to tell him that Timmy was trapped in the old mineshaft or something. 

The dog is a perfect angel that doesn't bark and is kept in a kennel when they are gone.

I'd ask the attorney what would happen if I:-invited sex offenders, felons, amd gangsters to come party in the yard near the ADU where the tenant has to walk past on a regular basis-spray painted all the windows on the ADU black to save on cooling costs, make it more california eco friendly-got some of those nonstop-barking dogs, the kind that bark if the moon moves too fast or the leaves rustle too much-turned off utilities to the ADU-painted the whole ADU with images of Satan and 666, sat in the yard lighting candles with a bunch of people who looked like Marilyn Manson, doing sayonces every night by the ADU-built a tall flight of stairs up and down at all doors to the ADU. 

😢Trashy neighbors are like Neighbors with barking dogs.