What should we do if another EB-5 regional center is using the same abbreviation as ours?

If this is a case, your lawyer should be able to enforce the cease-and-desist demand in court.

You need counsel other than immigration counsel.

The fact that you have sent them a cease and desist letter was clearly the right thing to do. Now, you need to hire an IP (intellectual property) attorney to warn them and clearly explain to them that if they continue on with their ill behavior, they will face very serious consequences. Usually, when this happens, the IP attorney is able to scare them off and most likely they will stop. If they do not, you will be justified to take legal action.

If cease and desist letter did not work, hire a litigator counsel to assist you further with this matter.

Although this is an intellectual property legal issue, with the cease and desist notice not achieving any change, you should seriously take the ultimate step: file a lawsuit. It appears that a reputation crisis is brewing for your business and you should nip it in the bud before it gets out of hand.

With respect to the fact that another regional center is using your abbreviation of their name, which can cause confusion in the marketplace with your regional center and your initials are trademarked, this involves an area of law outside of immigration law. I would go to a large firm with an intellectual property section and ask if they could undertake the protection of your trademark by first advising the other regional center that they&#39re in violation of your trademark. If they fail to respond to your cease and desist letter, you have no choice, on the advice of counsel, to file a lawsuit to enjoin such action.

Sounds like you need an intellectual property litigator. I suppose you can also notify USCIS, since they do somewhat regulate the naming of regional centers, but this seems more of an intellectual property matter than anything else.

Cease and desist letter is a good place to start. Get an attorney ASAP.