How cat i deter other cats from coming in my house?
A couple of ideas are talking to the owner if you know who it is and ask them to keep thier cats in or at least let them know you need to deter the cats from coming in your yard. Cats usually don’t like to get wet so a super soaker water gun aimed in thier direction may help, a motion sensored sprinkler or a citrus spray (cats don’t like the smell) that you use all around the outside of the house where there are windows can help keep cats away. It may take a bit of work but the cats outside will get the message (safely) and will give up.