I've inherited about 3.5 million dollars, 2 houses, and named trustee on 3 trusts. What assistance can a lawyer give?

An attorney can guide you on carrying out your responsibilities as trustee.

An estate planning or elder law attorney can help you answer questions about how to properly administer the trust. You do not need to go at it alone. Usually, trusts provide that the trustee is allowed to use trust funds to pay for legal advice in connection with administering the trust. 

A trusts and estates lawyer can advise you regarding your duties and obligations of the trustee in managing the trust, as well as representation throughout the administration process. A trusts and estates lawyer that also practice estate planning can help you secure your assets and plan for the their disposition after you pass away. In your case, it is advisable to consult with an attorney to determine your rights and obligations, and determine next steps as a trustee and beneficiary.