You may become so interested you will pursue avocational training. Your site may be so important that a university professor with students will work with you for many years. If you or the contractors find artifacts, attempt to get the archeologist to remove them. Field notes and photographs should accompany all excavations. Make sure artifacts and field notes are properly interpreted and curated.
Nothing looks sadder than boxes of unwashed, decomposing artifacts sitting in somebody's garage.
These are the pages of history which need reconstruction and interpreting so that the story of your property's heritage will be known. Donate the collection to the proper museum. Your SHPO or university can again help on this. Many students may be trained by washing, cataloging and studying your collection. It may contribute greatly to your town's museum or a historic home museum in the state.