And this is why lawyers in general don't participate in internet forums. No, my intention is not to write a treatise here, and yes, there is a huge issue of jurisdiction and territoriality which I didn't mention at all.
Budweiser, Scrabble, Smarties, etc. are well-known examples of trademarks which are owned by different entities in different places in the world.
Because the United States is a federal system of sovereign entities, one even runs into that situation here. The mark "USC" is owned by the University of South Carolina east of the Mississippi River, and it is owned by the University of Southern California west of the Mississippi River.
Dr. Berryhill, in your professional opinion, what are the best steps for domain owners to take to prevent someone from obtaining Trade Mark rights to domains that the domain owner has in their portfolio?
You are not going to like the answer, because there is no one-size-fits all answer to that question.
It's sort of like asking a medical doctor, "What's the best pain reliever?" Well, golly, there's a lot of pain relievers, and whether any one of them is the "best" in any given situation depends on the situation.
I have people trying to trademark a domain names
When you stop using "trademark" as a verb, you'll be closer to a better question.
That fact along with the documented ICCAN registration date would give the person who registered the domain ( before the trademark was applied for) some rights in the future if a trademark issue came up.
Maybe. Maybe not. The date of registration of a domain name can be important, but it's not the be-all and end-all of any problem that may arise.
If the term is geographically descriptive, like the "Miami Pizza" example you mentioned before, and if you are using it in connection with pizza in Miami, then the trademark issue is not that important anyway.
But if I registered "xyz.com" in 2002, didn't use it for anything in particular, and then someone comes out with "XYZ" brand shampoo in 2006, and then I start using xyz.com for shampoo in 2007, then the date on which I registered the domain name is utterly irrelevant to the fact that I started infringing the XYZ shampoo trademark in 2007.
Thanks for the professional advise
My general comments about trademarks do not constitute advice