You will have to ask a local real estate professional or title insurance company about the rules they follow, but if the new owner really needed to wait 1 year to sell before they could get title insurance, house flipping would be impossible, or at least very impractical.
However, if you sell the house to yourself (essentially) and then sell it later, if you wait less than 366 days, you probably lose the tax advantage of long term capital gains, and pay a higher short term capital gains tax rate.
