Reasonable Time - “so much time as is necessary under the circumstances for a reasonably prudent and diligent man to do, conveniently, what the contract or duty requires that should be done, having regard for the rights and possibility of loss, if any, to the other party. While there is no specific time period, when the sheriff is asked to make the return of the summons, the validity of the summons lapses.
Return of Summons - Sheriff must describe the facts and circumstances surrounding the attempted personal service. The efforts made to find the defendant and the reasons behind failure must be narrated in detail
Several Attempts - At-least 3 tries, on two different dates.