Canadian model Sonni Pacheco filed for divorce from The Avengers star in December (14), less than a year after the couple tied the knot, and they are currently locked in a bitter custody battle over their daughter Ava.

Pacheco is demanding primary custody of their little girl and more than $13,000 (£8,125)-a-month in child support, but Renner is seeking joint custody, and has now lodged new court papers alleging Pacheco only married him to land a green card, which would grant her permanent residence in the U.S.

In the documents, obtained by, the actor claims Pacheco repeatedly told their roommate that she only wed Renner for his riches and to gain the green card, and warned that the star should not fight her over her money request or interfere in her immigration case, or else she would leak embarrassing home videos to gossip bloggers.

The papers also detail allegations of bad parenting on Pacheco's part, after she reportedly left the baby at home, alone, for 15 minutes to attend a party in September (14), while the roommate has also signed a declaration revealing the model stopped breastfeeding because she had started drinking again and had allegedly snorted cocaine during a vacation not long after Ava's birth in March, 2013.

Representatives for Pacheco have yet to respond to the accusations.