If the tenant wishes to keep any outdoor pets, I require (with an addendum to the lease) that they be kenneled at the tenant’s expense and that they obtain (and show it to me...I already have my own copies on record) a printed copy of and follow all local laws (for feeding, watering, leashing, and sheltering the pet) and ordinances pertaining to pet ownership.

They, of course, assured me that they keep everything clean and neat, and the puppies will stay in a 10x4 foot kennel in the bonus room of the house.  

We have a required air installation noise zone disclosure, but no disclosure requirement for annoying noise like nearby bars with music, shopping centers, kennels -- it's up to buyer to do their due diligence.

Are you against kenneling dogs?

I've offered pictures to landlords & to bring my dogs to meet the landlord to prove their temperaments & tried to reassure them that they're both house broken, crate trained, supervised 100% of the time we're home or in kennels when we're not, and not destructive even if they weren't supervised. 

Three or more dogs is considered a kennel and is a zoning violation.

Can she put down her own carpets to limit scratching to the wood from nails (seriously, dog nails are brutal if they even get a little too long). 4 dogs are a lot in one unit, but if she's a trainer I'd assume that she a) kennels all dogs when not home b) has a no bark policy.

Each county/title company might have different information available.LA County has the following from a list I got: COM,STORE COM,STORE/OFFICE COMBINATION COM,OFFICE BUILDINGS COM,STORE/RES COMBINATION COM,MEDICAL,DENTAL BUILDING COM,MEDICAL,DENTAL BUILDING,2 STY COM,BANK,SAVINGS AND LOAN COM,AUTO SVC SHOP COM,PROFESSIONAL BUILDING COM,OFFICE BUILDING,W\RES COM,VETERINARY HOSPITAL,CLINIC COM,AUTO SVC SHOP,NO GAS COM,SVC STN,FULL COM,STORE/RES,2 STY COM,OFFICE BUILDINGS,2 STY COM,SERVICE/REPAIR SHOP,LAUNDRY COM,MOTEL,UNDER 50 ROOMS COM,SMALL FOOD STORE COM,SHOPPING CTR,REGIONAL COM,SHOPPING CTR,NEIGHBORHOOD COM,MISC COM,PROFESSIONAL BUILDING,2 STY COM,WHOLESALE,MFG OUTLET COM,SUPERMARKET,12000+ SQ FT COM,OFFICE BUILDINGS,CONDO COM,SHOPPING CTR,NEIGHBRHD,CONDO COM,CAR WASH,SELF SVC COM,REC EQUIP SALES & SVC COM,NURSERY,GREENHOUSE COM,USED CAR SALES COM,PROFESSIONAL BUILDING,CONDO COM,NEW CAR SALES,SVC COM,SVC STN,SELF COM,SHOPPING CTR,NEIGHBRHD COM,STORE,2 STY COM,SVC STN,FULL,LIFT COM,ANIMAL KENNELS COM,MOTEL,50+ ROOMS COM,CAR WASH

Any respectable ferret owner would kennel/cage their ferret when they are not able to supervise them.

Lady turned it into a kennel.