In all cases where mortgages or deeds of trust on real estate with power of sale have been foreclosed pursuant to said power by proper advertisement and sale, but the mortgagor or grantor under such mortgage or deed of trust did not receive actual notice of such foreclosure or have the opportunity of a hearing prior to such foreclosure, all such sales are hereby fully validated, ratified and confirmed and shall be as effective to pass title to the real estate described therein as fully and to the same extent as if such notice and opportunity for hearing had been given, unless an action to set aside such foreclosure is commenced within one year from June 6, 1975.
N.C. Gen. Stat. § 45-21.45