Is it legal for a sheriff to date or marry a convicted felon?

Why wouldn't it be? First, this is not a criminal law matter, but civil law. It might be, depending on local laws, that the sheriff might have to give up his position, but that's not likely.

Yes its legal. Might not be smart but so long as there is a separation from the system and the sheriff then its OK.

If he is the Sheriff ( not a deputy) there is really no one to report to except for voters at the next election. If he works for the department, he may have to report it to his departmet

What about the fact of the sherrif having a gun and the convicted felon is not allowed to be around a gun?

I think, quite frankly, that I'd stay out of the Sheriff's business. I'm sure the Sheriff is aware of the laws concerning felons/dating/guns.

What happened with your "Abandonment Court" proceeding?

The sheriff probably keeps his service firearm in a locked cabinet. That should meet requirements. And why is this any of your concern?

The father that I filed abandonment on is dating an officer and she works as a code sherrif. He has threatened to take or try to take rights of the baby, I know he doesn't have a leg to stand on, just in case I want to know all I can about his current situation. He is a convicted felon and did federal time for drugs and he is living with her. They sent me a money order for $150 and she signed it with her and his name using his last name. As if they were married. We go back to court on the 28th of April for the continuance of the abandoment charges. She signed the money order with her name, does that make it legit from him?

He owes you money; you got your money. It doesn't matter who paid it. For that matter I could have paid it.

If you can cash it, it's the money he owes you, no matter what the source is.

What is a "code sheriff"? The title of sheriff is used differently in different jurisdictions. It may be that .she does not have a carry permit for a weapon.

I would not bring this issue up in court. I think it will prejudice the court against you.

In my area it's a building/zoning/electrical code inspector - and, no, they aren't armed.

I have no idea about OP's area.

Here in GA we have code enforcement that work out of the police departments, they enforce abandoned cars, grass that is too tall, empty buildings, signs and more.
Most are not post certified and don't carry weapons,

At the end of the day, their relationship is not part of your court action