Poop in your yard?
Raccoons keep their (and our) environment free of indiscriminate poop by "using" the same spot when in a given area. This site is called a latrine site. A rolled up bath towel doused with ammonia will wick noxious fumes that burn the sensitive nose and eyes of any animal that approaches, and deter them from this area. It generally takes 7-14 days to alert all of the raccoons who pass through your property at some point, as they travel their 2-5 mile territory, that the latrine site has moved, and to locate the new site- hopefully somewhere where it won't be a problem for anyone.
Because ammonia evaporates, it is necessary to re-apply 1/3 to 1/2 of a bottle to the rolled up bath towel each night. (a small bowl with a rag isn't generally enough to be effective) $10 worth of ammonia (5 bottles) will give you 10 applications, which should be sufficient to resolve the problem. If you can't get to the site easily (on a roof), you can poke a pin hole in a gallon milk bottle to have it continuously soaking the towel to wick the noxious fumes.
When cleaning up raccoon feces, as with any feces, practice common sense hygiene. Wear disposable gloves, throw feces into the garbage for proper disposal. Wash hands thoroughly afterwards.
Placing a plastic kitchen size garbage bag flat on the ground, with rolled up bath towel placed on top of it will protect your bath towel from contamination. Ammonia is a cleaning product, so will assure your towel is cleaner than ever when it comes out of the washing machine. Additionally, the sound of the plastic rustling in the wind provides an additional deterrent. Animals hate the sound of rustling plastic. Some people have deterred raccoons from a latrine site by simply weighting down plastic bags so they won't fly away, but rustle in the wind.