Given General Lee will be wearing blue and not butternut, he keeps his family lands - no Arlington National Cemetery.
Arlington is not actually his family's (the Lees) lands. It was the residence of his father-in-law, G.W.P. Custis. When Custis died in 1858, he left Arlington and his other two plantations to Lee's three sons, with a life tenancy at Arlington for Mrs. Lee. Colonel Lee was named executor. The Custis slaves were emancipated by testament, to take effect when all the debts of the estate were cleared (including bequests of $10,000 each to Lee's daughters), or after five years.