Building Rise 360 courses for external clients- how do I get them the source files.

I'm not sure if it's appropriate to tag onto this discussion, so please forgive and redirect me if necessary... but I have a nearly identical question.

I'm working on a dispersed team and most of us are using Rise.  The question is, if I do not reassign ownership or provide collaboration rights to other team members, how can they access my source files if I should, say, win the lottery and disappear to a south Pacific island?  Is this something our Admin can do?  Is there a best practice to insure against this sort of thing?  

Thanks!