double closing in a sub2?

do i have to have a double closing on a sub2 deal (one between seller & I, the other between me and the buyer)? I would really appreciate any advice.

u can close on the seller’s side, then market to find ur buyer and close on the buy side. u have to be careful that u don’t sell real estate that u don’t own. i think (most) states call that illegal. >:(

if u double close u’ll have had to find ur buyer previously. how do u market the property if u don’t own it and don’t have a realtor’s liscence? u can L/O it from the current owner.