TMZ just spoke with Dina Lohan, who confirmed that Lindsay and Ali are at her NY home to shoot a Mother's Day special for E!, in which the girls will help Dina rearrange ... of all things ... her closet.
Dina -- who was in hair and makeup during our conversation -- told us there was one family member who wasn't welcome at the shoot ... Michael Lohan. And as for Mike's ultimatum, Dina tells us she will not speak with her ex-husband and reminded us that she still has a criminal stay away order against the guy.
Dina also told us she has a plan to help with Lindsay's personal issues, telling us "We're on it."
As for Ali, Dina says she was only in L.A. for a week and now she's back in New York to stay.
The L.A. County Sheriff's Department can rest easy.
UPDATE: A rep for E! tells TMZ that whatever show Dina is shooting ... it's not theirs. It could be a segment for ET, but a rep for the show hasn't returned our call yet.
UPDATE 2: Lisa Bloom, Michael Lohan's attorney, released a statement that reads: "Michael Lohan loves his daughter Lindsay and stands ready, willing and able to help her any time she needs him, day or night. Our # 1 priority remains to save and protect Lindsay. All legal options in that regard remain open. We hope that Lindsay agrees soon to voluntarily enter an appropriate treatment program.