Getting Deposit Back

[William Feldman]

I'm currently moving out of my apt. and I know Landlord is selling it.  I gave a deposit which should go back to me within 30-45 days because main office needs to release it to my landlord.  To add to this whole story my landlord lives abroad.  I'm worried that he will sell the property within 30-45 days and then disappear with my deposit. Is there a lien I can put on the property to prevent sale until deposit is paid? And how would I go about doing that?