I need help. My mom passed in July and she had a will BUT I need someone to contest the will because she died in a car accident an my sister doesn't w

While Volunteer Legal Services may help you present the Will for probate, they usually do not handle Will contests.  You are unlikely to learn whether another attorney thinks you have such a strong argument that they are willing to represent you in exchange for being paid out of your theoretical share of the estate by posting here:  there are too many unknown facts.