I got in trouble too. You know my previous dachschund Sugar? Well people were stepping in bits of poo all over our neighbourhood and accusing my dear, sweet Sugar of having done the dirty deed. It turned out to be a neighbour who was letting her cat run all over the neighbourhood, but the people still complained to the district authorities and I had to keep Sugar indoors for a week- no walks! you can imagine how far I had to go from our district to walk Sugar... so I think you should let a neighbour keep the other two cats til you can clear having four cats in your house... it's either that or move!!