In 1680 the area around Mount Hope was awarded to the Plymouth Colony, which promptly sold it to a consortium of Plymouth men, including Saffin, the Indian fighter Benjamin Church. This tract became what is now Swansea, Massachusetts, Bristol, Rhode Island, and all or part of other nearby communities. Saffin was also a significant investor in the Atherton Trading Company (named after Humphrey Atherton), whose partners included many of the leading merchants and politicians of both Massachusetts and Plymouth.
In 1680, Mount Hope's surrounding area was transferred to Plymouth Colony, which quickly sold it to a group of Plymouth men, including Saffin and Benjamin Church. This land eventually became what is now Swansea, Massachusetts, Bristol, Rhode Island, and other nearby areas. Saffin invested in the Atherton Trading Company (named after Humphrey Atherton), whose partners were influential merchants and politicians from both Plymouth and Massachusetts.