ana amtaliku or amlak (both of words are the same but the preference is for amlak) = I own (like a house , car , company , 50,000 $) they use normally for something big.
ana iindee= I have ,this word is an open word , and you can say it for something big and small ( car , cat , mobile , money , a new dress , allergy , cold , … ). = more popular
ana ladahya = I have , it is less used than ana iindee.
I hope it is clear for you now!
Regards ))