I need to give the buyers of my property a notice of termination of contract form, however, I can't find a template anywhere. I have found a notice of default of instalment contract (which has already been given to the time of default), but the notice hasn't been satisfied in the stipulated time period, therefore, it's time to terminate the contract and have them vacate the premises. Can I just knock up any old letter stating it is a notice of termination for failure to comply with default notice or is there a specific form somewhere I have to use so it is legally binding under Property Law? If so, what it is called? Also, does this letter get sent by registered post or do I need to employ a sheriff to deliver it? Thanks in advance.