Your son may have an oral contract and/or an equitable claim (quantum meruit). Whether it makes sense to hire an attorney depends on the amount in dispute and how the attorney is to be paid for the case.
A good lawyer will investigate the alleged crime, talk to witnesses, review the physical evidence, and either obtain an agreement that your friend will accept or take the case to trial. Your friend should not talk to the police without first receiving advice from a lawyer. You may have to retain the attorney if your friend is still in jail. If you are able to bail him out of jail, the bond may help to pay the attorney's fee, if that is acceptable to the attorney.
Call the county clerk and maybe they will tell you. I have had them give me the information simply based on knowing the driver's license. I think you need to know more about any conveyances to determine whether the court may be able to do anything about it. You should decide, based on the value of the truck, whether it makes sense to get someone else involved in finding this out.
You should talk to the Kenton County Attorney's office about the possibility of filing charges, which may help with any insurance claim. See if your homeowners' insurance covers identity theft. Unless the utility company is suing you for alot of money, it may not make sense to hire a private lawyer. But before you pay them anything, it may be best to get a lawyer.
You may need to hire a private investigator to locate him, but that is only part of the problem. You also need to make sure he is properly served. You should use an attorney to get this done, because you may not get a second chance if the service is not done right the first time.
If you and the child's grandmother live in the same school district, you should be able to enroll the child yourself. If you are in different school districts, you may be able to pay an extra fee to enroll her there yourself. If you are going to use the grandmother's address and not pay any extra fee, the district may require the grandmother to have guardianship. Unless the school specifically requires guardianship though, there IS a way to give the grandmother the authority to enroll the child...
The mortgage company is suing you because you signed a contract obligating yourself to be liable on the mortgage. If you have to pay any damages, you may be able to go after your ex-husband for the damages, attorney fees, litigation costs, etc. You should not sleep on your rights by ignoring the new lawsuit or thinking that you have it worked out directly with the mortgage company. You need to attend any court hearings and make sure any agreement discussed with the mortgage company is properly...