They are Turkish property now. While I will not rule out the possibility that the US can still theoretically block their transfer, I will point out that the US confiscating those jets is on par with Turkey confiscating F-22 jets stationed in incirlik. Just saying...
Trust me buddy I am not overthinking anything I just like destroying Iranians in my free time. And if one is stupid enough to initiate it himself then halle-fu**ing-lujah!