Coastal is a New York company owned by a former protege of Donald Trump.
The lawsuit claims the casino needs at least $50 million in repairs.
No immediate comment from Trump Entertainment.
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Ex-buyer sues Trump casinos for failed deal
ATLANTIC CITY, N.J. (AP) - July 29, 2009
A company that once intended to buy the Trump Marina Hotel
Casino is suing Trump Entertainment Resorts for $17 million.
Coastal Marina LLC claims the company allowed the property to fall
into disrepair and diverted customers to other Trump casinos.
