Difficulty: Moderately Challenging
Step1
Get legal advice on the whole issue of suing for defamation. There is a lot involved in this type of lawsuit and a lawyer can help you to understand the laws that pertain to such claims, and whether or not your issues can qualify as a legal claim.
Step2
Prove that false statements are or were put forth publicly about you. This can be someone swearing an affidavit saying that these things were told to them, having someone give testimony on the witness stand, or if the statements were put forth in writing, presenting those statements as physical proof.
Step3
Prove through documentation or by witness that these statements are actually false allegations and have no truth in them. Simply saying they are not true does not prove that they aren't true.
Step4
Prove that these statements have caused you some form of undue hardship: stress, family destruction or financial loss. In other words, you need to have suffered some kind of damage resulting from the allegations.