How about a source for your assertions regarding the Virginia Manumission law. Your version doesn't quite square with what I found on the web. The year of the act was 1806, by the way.
"If any slave hereafter emancipated shall remain within this commonwealth more than twelve months after his or her right to freedom shall have accrued, he or she shall forfeit all such right, and may be apprehended and sold by the overseers of the poor of any county or corporation in which he or she shall be found, for the benefit of the poor of such county or corporation." [Shepherd, Statutes at Large, III, 252; passed January 25, 1806; in effect May 1, 1806.]
Located here . I stand corrected on the date.