The short answer is no, you won’t be taxed.
If you are a beneficiary in the will, the inheritance is tax free. But if not, if she shares the money with you it is considered a gift and you pay no tax anyway. If over $17,000 she should report it on form 709 but she wouldn’t pay tax either due to the high gift/estate tax exemption. If you are married, she could give you a combined total of $34,000 without having to file that form.
