You did not ask a question. .

Nothing prevents that. There is no conflict of interest

An attorney cannot work on a contingency fee for certain types of representation including criminal and divorce

Talk to your attorney. . .

It is not a simple straightforward answer. There are many factors involved. Are you referring to authority or geography? Did the...

It is a civil infraction, not criminal It is up to you

Also you cannot represent your brother as you are not an attorney. Your brother is a minor and needs to have parent involved

And, of course, he obtained medical care and saved a sample

You have lawyers who are more familiar with the case than we are

You need to consult with an Ohio lawyer