The best way to rid anywhere of coon and her babies is to use male coon ****. Now I don't know where or how to get that ****, but I know it works. I had a customer with coons in an attic where we couldn't access without removing ceiling drywall or shingles and decking....so I called a professional critter control guy and he put some male coon pee on a ball and threw into attic. Momma moved her coons out ASAP. I asked the guy where to get the pee and he wouldn't say. I think they live trap a coon and check it's sex, if it is a male they then put plastic under trap and collect pee, I could be wrong though.
Just find a male coon and give it a 12 pack of cheap light beer. The pee will be flowing in no time, and the coon will be in a better mood.