I would be more than Happy to try and Answer your Question and/or Guide you in the right direction but Apparently U are advertising P.i.'s and Idk Specifically what you actually mean....With all due Respect your question is Vague (To General).  I am The Founder of our P.i. Business for the Past 39yrs and your10 word question could be answered in Various Ways and it still might NOT be the correct answer that your looking for.   Suggestion: Try and rephrase your question and be more specific.    Thank You, Licensed by: The Pennsylvania Courts Michael D. Tarbuck P.i.