McKENZIE CHECK ADVANCE OF FLORIDA, LLC v. Betts2010 WL 145898 | Fla. | 2010|Check Treatment 27 So. 3d 661 (2010) McKENZIE CHECK ADVANCE OF FLORIDA, LLC v. BETTS. No. SC09-270. Supreme Court of Florida. January 13, 2010. Decision Without Published Opinion Mandamus granted.