Tennessee Code Title 29. Remedies and Special Proceedings § 29-6-116

(1) When the amount of the claim is less than the value of the property sought to be attached, a bond in a penalty equal to the asserted amount of the plaintiff's or complainant's debt or lien plus an additional sum which in the opinion of the issuing officer will be sufficient to cover the probable cost of litigation and all damages that may be sustained by reason of the wrongful suing out of the writ;

(2) When the amount of such debt, or lien of the plaintiff or complainant shall be greater than the value of the property sought to be attached, the penalty shall be equal to the estimated value of such property plus an additional sum which in the opinion of the issuing officer will be sufficient to cover such costs and damages;

(3) When the claim is for unliquidated damages, the penalty shall be equal to the value of the personal property to be attached plus such sum as will be sufficient to cover such costs and damages; or

(4) When the property to be attached is real estate, the issuing officer shall only require a bond in penalty sufficient to cover all such costs and damages as same may be estimated by the issuing officer.