Section 1. Be it enacted, &c., That all deeds and conveyances of lands within this Commonwealth heretofore made and executed, and duly recorded in the county where the lands therein conveyed lie, under the authority of any last will and testament, by the executor or executors thereof, or trustee or trustees named in said will, and having power therein to convey real estate, the said will having been duly proved and letters testamentary granted as prescribed by the laws of the State of which the testator was a citizen at the time of his death, shall, upon the recording of a copy of said last will, duly certified as prescribed by the acts of Congress, in the office of the register of wills in the county where the lands conveyed lie, be held to have the same force and effect to pass and convey the estate that was in the testator at the time of his decease, and intended to be conveyed by the deed or conveyance, as if such will had been duly proved and letters testamentary thereon granted within this Commonwealth: Provided, That all such deeds or conveyances shall be in such form and drawn in such manner, as to convey the estate intended to be conveyed, either by the laws of this Commonwealth, or by the laws of the State of the testator's domicile, and shall have been duly acknowledged as prescribed by existing laws of this Commonwealth: And provided, That nothing herein contained shall affect the rights of the parties to any suit now pending.