Her friends are bad influence, says Lindsay Lohan's dad

In an email to the New York Post, Michael said: "I am very upset with the crowd around Lindsay. My advice to all the negative influences in Lindsay and my other children's lives is, this time, you have crossed the line and bitten off a lot more than you can chew."

Lindsay Lohan. Pic/Santa Banta

"My family will not be subject to your misguided morals and ways! There will be changes!! Just watch," reports contactmusic.com.

Meanwhile, Lindsay's mother Dina is urging her daughter to get a permanent order of protection against Michael, but the she thinks the measure is too harsh as it would ban her from even receiving calls, texts or emails from him.

The 'Liz & Dick' actress said she was done with her father after he betrayed her trust by making public a conversation they had about her fighting with her mother because the showbiz matriarch was allegedly on cocaine.

Lindsay, 26, said: "I told my dad a really hurtful and untruthful lie about my mom. She was not on cocaine. Daughters have fights with their moms. It happens a lot. It's normal.''u00a0