Hi Stephanie--
What happens when the domain owner logs in to their registerfly account and tries to update the domain admin data?
I've not had experience dealing with Registerfly specifically, but I do hold an enom reseller account, and I've 'done' a few domains in my day

If you'd like to contact me off-forum with the details I'd be glad to see if I can assist.
And no - they don't have to transfer thier domain registration to me.

I'm not in the domain registration biz per se. I maintain an enom reseller account as a convenience - not a source of income.