Update:
We took our horse to my friend's a while back. I was biting my nails over the whole thing but my friend keeps her horses on the same property with another guy who has all these large work horses, mostly male. My 20 year old horse who looked blase all summer, bored with us and our pasture, suddenly perked up and started POSING for the "gentlemen". Her eyes got a light in them and she all but forgot about my husband and I! Needless to say, we were relieved she seemed happy with her new digs. She also got to meet back up with an old pal of hers, so she was just fine with the move. Plus, my friend got her 10 year old daughter on her within a few days and said my mare behaved perfectly. My friend has 3 horses, 1 pony, and had no horse her daughter could safely ride, so she was thrilled. I miss the old girl but it seems she's showing the next generation a wonderful ride.
Next, I searched for the right dog. We determined that an English Shepherd was the right dog for us... a little harder to find than your average dog but well worth it. We got a little puppy. He's not big enough to fight off raccoon yet but he's got a ferocious growl and bark already! We're reading all we can to avoid "messing him up" and introducing him to the chickens every day. For some reason he's pretty good with the hens but he still rushes the pens with the adolescents. It'll take some time. I'll post a picture when I can figure out how to make the size smaller.