If a permanent resident is away from the U.S. for longer than six months, USCIS may make a rebuttable presumption that the investor no longer intends to permanently reside in the U.S. The investor can overcome this presumption by offering evidence of sufficient ties to the U.S.—these ties may include a family presence, permanent residence, vehicle ownership, bank accounts, tax documents, etc. For absences longer than one year, the permanent resident should obtain a reentry permit.