I'm thinking of using Jake's Frontline on my neighbor's dog, Skip.

Skip is actually bigger than Jake was, but it should help a little, don't you think? Jake was 45 lbs and Skip is about 90-100.

What happens if I put it on him and he already has ticks? He has them for sure. Will the ticks just fall off?

His owners are in their 80s and poor as church mice, so please don't judge them. They're caring for him as best they can.