The governing body of the Spanish top flight has agreed to play one game per season in the USA as part of a 15-year deal with media company Relevent, who arrange the pre-season International Champions Cup tournament.
However, the Spanish FA and Spanish Footballers’ Union have spoken out against the plan, and now Perez has announced that Madrid will “reject” any attempts to make them move one of their matches.
La Liga president Javier Tebas confirmed he was still confident of the January fixture taking place in Miami despite the Spanish FA (RFEF) asking for more documentation to approve the clash.
“What we are being asked now is for more documentation and that is what I will prepare,” Tebas said.
“I have been with the Delegate Committee all morning and I have not been able to study this letter, which is quite long. We are going to look and prepare everything.
“I am still quite optimistic on all of the issues and we will have to see what happens in the end.”
Perez also used the general assembly to discuss proposed developments at the Santiago Bernabeu which are forecast to cost up to €525 million (£472.2m/$617.9m).
“Here we are going to decide the fate of the one that has to become the best stadium in the world,” Perez said.
“[Technology will be] one of the fundamental aspects of the project, in order to have a digital Santiago Bernabeu.
“In this stadium the myth and legend of Real Madrid has been forged, Santiago Bernabeu showed us the way. It will be the scenario that will mark the future of Madrid, the best in the world, to be recognised again as the best club of the century.”
“We won’t go to the United States,” Perez said in a statement.
“I don’t know whose interest it is in to play there but it is not in the interests of the clubs or the supporters, so we outright reject it.”
Barcelona and Girona have already requested to move their January meeting to Miami.