If the Grand Jury does indict, usually the indictment will be served by summons (notice to show up to a court date) and not via an arrest warrant....

Warrants never expire. There's a good chance his warrant will be found when he re-enters the country so the Feds will arrest him for CT.

This law does not exist. To get credit for 12 months, he has to serve 12 months

No. There aren't attorneys that wait around to try criminal cases for free. I would be careful that your fiance is not telling you the whole story.

They aren't his charges to drop. The police decide if someone gets charged. I recommend speaking to an attorney ASAP

You need to ask the person supervising you and also check the papers you were given upon release. I doubt the answer is "yes" but if you're dead...

The burglar was arrested and you got your stuff back? That sounds like a win. What do you want help with?

The only thing you can do is hire an attorney at this point.

There is no shortened time conversion for people in prison. In Ohio, 1 year = 1 year.

It sounds like they did it based off your comment. All you can do is work with an attorney to fight this.