Is there a county ordinance against chaining dogs in the yard!

There are restrictions to tethering a dog on property. However there in not an ordinance that forbids it. If you feel a dog is in danger call 311 and have an officer go out to check.

Where can I take my dog ​​to sterilize it for free?

There is a tethering ordinance that talks about how to properly tether your dog outside with several restrictions and instructions. There is no law against it, however. If you think there is an issue, please call 311 for an officer to investigate.

I am not certain. That's a question for them directly.