Before paying for legal forms online (or from a book), check to make sure they are forms the court will accept and to find out if your county or state already makes the correct forms available free of charge.
It’s not unusual to find “cheap,” “low-cost,” and “free, if …” legal forms online that judges and public law librarians know are available totally free AND are up-to-date, AND are official (that is, they will be accepted by the court where they need to be filed).
It’s also not unusual to hear about legal papers drawn up and filing fees paid, only to have the case dismissed or delayed because the wrong forms were filed or local court instructions weren’t followed.