Any Female who is clever enough to aquire themselves a slave absolutely should be allowed to sell Their property.
I voted 'yes, but not in all cases' as only Superior Goddess' like those of You that post here truly understand the power that Women have over men, and deserve to be able to sell and buy us. Who would want to buy a man for example that does not know its place? And by the same token, the majority of the female gender who do not understand their power and pander to the needs of their husbands, boyfriends, partners should not be able to buy men either, until they are trained in the Power they possess and how to harness it and use it to benefit themselves.
I too would expect to be sold, should it please my Princess to do so.