Is there a compliance code for pets being in small yard and owners not cleaning up the pets poop. Smell is unbearable, can't be healthy for the dogs.

You may call in address for an officer to do an welfare check.. Can't be safe or healthy for the animal.. Or owner

Yes. The waste must be removed. Class C... Per City of Ft Worth animal control website.

I'm not sure about compliance code, but its not healthy.

Unsanitary Condition The owner of any animal must remove manure and droppings from property, place food only in impervious containers and equip watering tanks with adequate draining. Animal Waste No person shall discharge, deposit or allow to accumulate on private or public property in the City of Fort Worth, any animal waste. Violators can be charged with a Class C misdemeanor. Animal Control Laws If you are experiencing problems with stray dogs or cats in your neighborhood, call Animal Care and Control or complete the online complaint form.

I wish that I could be of some assistance here but I don't know.