read the document to make sure it meets your needs. make sure that you’ve clearly explained the relevant ip infringement.
you should also make sure that your letter won’t put you at risk of the recipient making a claim against you for unjustified threats of ip infringement (read the legal tip titled ‘be sure that the recipient of your letter is in breach of your ip rights’, below, for more information).
remember that, if you have any questions, you can easily ask a lawyer for help.