BOSTON (AP) — A federal judge has turned down a request from the twin sister of mobster James “Whitey” Bulger’s girlfriend to lift a lien on her South Boston home, saying the house could be used to pay court-ordered fines.

Prosecutors say Catherine Greig (grehg) had a part-interest in the home before she transferred it to her sister, Margaret McCusker, after Greig was arrested with Bulger last year.

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Prosecutors have frozen Greig’s assets in case she is ordered to pay a fine when she is sentenced next month for helping Bulger while he was a fugitive. She faces a fine of up to $750,000.

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The judge did agree to allow McCusker to use money from Greig’s bank account to pay tax and maintenance bills on Greig’s Quincy home and to evict a non-paying tenant.

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Copyright 2012 The Associated Press.