Regarding the raccoons, you probably won't be wanting to take the time and expense to build a fence, which is the most secure method. I would imagine that maybe there is some kind of repellent you could spray? I use liquid fence deer and rabbit repellent on my orchard, which works like a charm, I dont know if it would work on other rodents, but I guess it might. I also dont know if getting it on or near your hives would hurt. It only really stinks for 5 minutes, but the bees have a much better sense of smell.
Deadly force is maybe an option? Maybe cruel to some, but I would probably be taking these 'coon raids a bit personal. It's also permanent. Until the next 'coon family starts raiding.