We filed a lien and now need to remove it.
Congratulations on getting paid!
Removing a filed lien in Indiana is fairly straightfoward. All that needs to be done is file a lien release form in the county recorder's office where the initial claim was filed. It should reference all of the recording information of the claim (such as the date filed, the book/page numbers, etc.).
You can download a free Indiana Lien Release form here
You can find all the Indiana county recorder locations & information here