First you must furnish all supporting documents for each claim so the dollar amount can be authenticated and an appropriate investigation can be done prior to the filing of suit if applicable. Next, the steps are normally as follows.
Review the file to verify the amount of the debt and the basis for the debt;
Ascertain which Court has proper jurisdiction in this particular matter;
Give the debtor written notice that we represent you and also make a formal demand for payment, either in full or on a schedule (often we include a draft complaint);
If a demand is not met, file suit in the Court whose jurisdiction and venue are proper.