When to give RE title company the Purchase Sales Agreement

[Arthur Means]

In order to avoid being stuck with a wholesale property that I'm trying to flip, how long should I wait before providing title company with the P/S Agreement? Is it best to wait until I have found an end buyer and then forward it along with the Assignment Agreement? I'm just trying to figure out the timing of all of this, being that I'm new to Wholesaleing. I welcome your feedback.