1.) Yes. There are several in your case (maybe).
You can form a corporation. A corporation can purchase NFA Title II weapons without the CLEO signature. There are ups and downs to this, for more details please do a search in this forum for threads related to corporations.
You may also POSSIBLY get the CLEO in Summit County to sign. Technically, the person that signs is SUPPOSED to be the CLEO having jurisdiction where you reside. Where you reside is defined by BATFE as your PRIMARY place of residence. It's my understanding that they don't try to enforce that, it's too hard.
If the Summit County Sheriff will sign, I'd try that first, the corp. as a backup. I'd bet that he does sign.
Once the silencer is transferred to you legally, you can take it ANYWHERE you can legally possess any firearm. That means you can take the gun AND silencer to your home in Douglas County and tell the NAZI er I mean 'sheriff' to go **** ***. :evil: You can also use the suppressor in his little kingdom, whether he likes it or not. :twisted: If you look around you'll see that we do monthly shoots. One north every other month and one south the months in between. The south shoots are actually held in Douglas County just north of Woodland Park.
Welcome aboard. Karl.