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.

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.

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.

Copyright 2012 The Associated Press.