Yes. Previous refinancing or consolidation does not affect the eligibility of your application. As long as the completed degree you have received was obtained at a school under the Title IV accredited list, we are able to refinance your existing loan.
However, please note that in November 2017 Earnest was acquired by Navient as an independent subsidiary. Navient has an agreement with Sallie Mae Bank that prohibits the refinancing of Sallie Mae loans until 12/31/18.
If you have loans at both Sallie Mae and another lender, the non-Sallie Mae loans may still be eligible for refinancing. If you apply and are approved, your loan offer would apply only to your non-Sallie Mae loans.