From the Roane County Sheriff’s Office:

A Roane County resident recently reported to us that they received a letter allegedly from the Property Assessors office, informing them that they needed to pay over $16k in taxes and penalties on their commercial property, threatening to seize the property if they did not comply. The resident was suspicious of the letter and contacted the local PA office, who confirmed that it was in fact a scam. If you receive a letter like this, do not send any money or provide any information. You can call 865-376-4362 to verify any document you receive.