[lambdaindenver]

I do not worry about obtaining letters of resignation - they are almost impossible to get. If an initiated member has told an officer of the chapter that he wants to resign, have the Executive Committee vote to accept the resignation and then make the necessary roster change.

When someone drops out of your undergraduate institution, the chapter should immediately make the necessary roster change. If the member dropped out while in financial good standing, his status will be that of an alumnus in good standing. If he was not in good standing, he will not be an alumnus in good standing.

I am not sure that there is any need for the chapter to "debrother" him.