Can seller charge no refundable deposit ?

[David Smith]

If buyer backs out in a legal contract—-  Either with or without contingencies. 

My lawyer said the court will not support such non refundable amount no matter what.  

H

[Percy N.]

What size property is this?

For larger properties (100+ units), it is common these days to have some amount "hard" (non-refundable) and no such thing as a "sellers disclosure". The buyer has to do their Due Diligence.

Having said that, well written Commercial RE contracts have a clause about non-performance on the seller's part.