64 Pa. Stat. § 156
In all cases where no actual settlement and residence as aforesaid now exist, or has been made on a tract of land heretofore surveyed on an original warrant, but the warrantee or his legal representative shall, before the first day of June, 1814, agree with any person or persons to commence an actual settlement on said tract on or before the said first day of June, 1814, and release to such actual settler his claim to a hundred and fifty acres and allowance of said tract clear of expense, to be laid off by the deputy surveyor of the proper county; and said person or persons, his or their legal representatives, shall commence an actual settlement on the same before said time, and continue a residence thereon for five years next following the first commencement, and within that time clear, fence and cultivate at least two acres for every hundred acres in said survey, and erect a house thereon fit for the habitation of man, in such cases the commonwealth shall cease to have any further claim to said tract, and will confirm and ratify the title to the same.
64 P.S. § 156