Hi Mark.
There are a variety of domain dispute options, but the one that works best to get a name transferred is the UDRP (
https://www.icann.org/resources/page...-2012-02-25-en). The UDRP is based on trademark issues and if you are eligible is your fastest route to get the name transferred.
Alternatively, you could also pursue the URS (
Uniform Rapid Suspension System (URS) - ADR Forum) which is a little bit faster and cheaper, but it won’t get the name transferred, it only suspends the name for as long as the current registrant has it registered.
Hope the above has been a helpful overview of some of the options as this may be handy for you for future reference.