The San Jose Mercury News reports Wednesday that it's unclear who will inherit Kinkade's Monte Serrano mansion and his warehouse of paintings.
The dispute between his widow Nanette Kinkade and girlfriend Amy Pinto erupted after the 54-year-old artist's death in April.
In a statement, lawyers say the women kept the artist's message of "love, spirituality and optimism" in their amicable resolution.
Pinto began dating Kinkade six months after his marriage of 28 years imploded. The Kinkades were legally separated when he died.
Pinto later produced two disputed handwritten wills that said Kinkade would leave her $10 million and his home.