Overcoming Negatives Associated with Your Pets.
If you shrug off all professional advice and absolutely refuse to move your pets out of the house, then at least minimize the objections and nuisance factors, real or otherwise:
Cat Litter Boxes & Dog Potty Pads
Keep them out of sight and impeccably clean. Nothing turns off buyers faster than opening the door to the laundry room and being greeted by a full or stinky cat box.
Carpet & Floor Pet Stains
Hire professionals to remove the stains. Buyers will spot them and form unfavorable opinions about the rest of the house. If the stains can't be removed, then remove the floor covering and replace it.
Pet Odors and Smells
Cat urine is the worst. Without question. The. Worst. Bring in a neighbor to do a whiff test.
Do not use air fresheners. People with allergies will react.
Try enzyme cleaners or call a professional ozone company.