Los Angeles, California - Anne Heche's son, Homer Laffoon, wants full authority over his mother's estate after the actor died last month without a will.

Laffoon filed a petition Wednesday in Los Angeles Superior Court to be named administrator of Heche's estate, as well as the legal guardian of his 13-year-old brother, Atlas Heche Tupper. In court documents, the brothers are listed as the only two heirs of their mother's estate.

The value of Heche's estate is currently unknown, according to the filing.

Laffoon is the son of Heche and her ex-husband, Coleman "Coley" Laffoon, a real-estate broker, while Tupper's father is the actor James Tupper, who dated Heche from 2007 to 2018 after meeting her on the set of the ABC series Men in Trees.

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Homer Laffoon's petition comes less than a month after the Donnie Brasco star crashed her car into a Mar Vista home, which then caught fire. The actor died from injuries sustained in the accident. A spokesperson for the Los Angeles Police Department confirmed that the Emmy and Tony nominee was driving under the influence, while authorities also told The Los Angeles Times that an initial blood test revealed cocaine in her system.

After she was declared brain-dead, Heche was kept on life support until a viable recipient was found for her organs, per her longstanding wishes. She was removed from life support on August 14.

Homer Laffoon released an emotional statement after his mother's death, writing, "My brother Atlas and I lost our Mom. After six days of almost unbelievable emotional swings, I am left with a deep, wordless sadness."

He added: "Hopefully my mom is free from pain and beginning to explore what I like to imagine as her eternal freedom."

"Over those six days, thousands of friends, family, and fans made their hearts known to me. I am grateful for their love, as I am for the support of my Dad, Coley, and my stepmom Alexi who continue to be my rock during this time."

The 20-year-old finished on a heartrending note: "Rest In Peace Mom, I love you, Homer."