However I just received a very concerning letter from the Fire Marshall Office saying I need to provide a notarized letter within 5 days stating I will not have more than 12 occupants in the cabin until I change the Certificate of Occupancy which would be devastating to my bookings.  

Check county recordsUse online search tools like PropStream, Reonomy, PropertyShark, etc.Use local GIS mapping tools (ask your county)Search online directories for LLC or TrustTalk to neighborsHire a skip tracerSend a letter to the propertyThere are a lot of options.

Would very much appreciate opinions on whether Canton, Ohio is a good area for buy and hold or flipping, specifically within a few blocks of intersection of routes 43 and 172.  

I’m considering having a lawyer send them a certified letter, though I know that will still come with a significant fee, which is still preferable to full service.

IF you don't know the number or the caller, don't answer and block. 

I am really shocked any jurisdiction out there would block or ban them.

Our house is in the R2 zone (4 blocks off main) and the process to transfer the permit back in March was a breeze.

A suggestion about Furnished Finders, their calendar sucks because you can't block off your high-season months, a real detriment to taking bookings through them.

So yes, apparently sometimes you do have to go behind the brokers back to get things done when they are trying to block or delay things. 

Rather than hire as many sales people to do follow ups--set up automated text messages, emails, letters, or postcards to be sent to your best prospects.- Podio has really good integration with other services--like RightSignature for eSignature, Google Docs/Drive, Dropbox, Twilio for SMS, Lob for physical mail--either for marketing or other workflows like invoicing, and a ton of other services.