If your agreement was for seller to pay towards recurring and non-recurring closing costs, and you are not impounding, have them pre-pay the 2nd half of this years property taxes (due and payable now, but not delinquent until April 10). In Los Angeles that might well solve your problem.
If the agreement was to pay towards repairs, then have your contractors submit their bids to escrow and have escrow hold the funds, to be disbursed when the work is completed.
Speak with your lender and real estate agent, get creative, and between the three of you, you should be able to come up with a beneficial way to use the whole credit. Dare to Dream.
Real Estate Consultant
RE/MAX Palos Verdes Realty