Not that I am aware of. And that is on purpose. The concept of DHCP is that it is a single place that keeps track of addresses and hands out available ones. Having two servers doing that for the same group of addresses wouldn't work - they wouldn't know which addresses were given out yet or not.
I have seen what you are thinking about in practise accidentally when someone plugs in a rouge router and it begins serving addresses. Who gets what address and why is really indeterminant and some what random depending on network traffic and response times, etc. So whil delaying a remote DHCP server response sounds good in theory, it doesn't really work in reality. Remeber, if you have your leases set fairly long (more than a week) you should have plenty of time to fix the ailing DHCP server before it starts becoming a problem.
