@ACLRJM There are the Terms and Conditions. When THS refused to change them (see Sitter has to pay veterinary expenses up front! - #168 by Angela_L ), I put this in the “About” section of my profile:
THS has in its terms and conditions clauses about sitters being obliged to cover ANY emergency veterinary medicine and ANY emergency repairs of damage to the property (5.3.5 and 5.3.6). I do not regard myself to be bound by these clauses.