Are there any Resistance Masses held regularly( or semi-regularly) in the Northeast or Southeast?
The Northeast and Southeast is a big territory. Are you looking for a resistance Mass anywhere along the whole East Coast or somewhere more specific?
I know Bishop Zendejas used to have a chapel connected with him in Connecticut. There was a family of sisters (the Dolan sisters or something like that?) who sang for his Consecration Mass.
Father Waters offers Mass in PAat Saint Peter and Paul's. He is technically independent but on friendly terms with the resistance and used to be Father Ortiz' confessor.