Could I get in serious trouble if I try to chaged my moms will?

I had a horrible sad childhood wich i will not to out all the details as most are very sad. I was physically and emotinal abusive lets just live it that way. Now thinking about going to Texas for a month get one of my good family friend she an attorney told me that i was the one being the play th mom role when I was raising my siblings cleaning the whole house cooking being a punching bag and my mom was financially stable enough to provide a good life nice house you would think this girl grow up okay not every is what it seems. Now this family attorney that my mom trust she spoke with me over the phone and advice me to chaged things behind my moms back that i should bethe one to benefit from all the goo stuff. Which i could sale the houseanake good profit or rent it. My mom plans on giving everything to her golden child my older half sister. What do you think?

Could I get in serious trouble if I try to chaged my moms will?
Post Opinion