What are my rights against a commercial property management company involving a receivership contract termination?

As of 10/1/09 my company was under contract to perform lawn services for a commercial property in a local shopping center. We received notice a few days later that the contract was cancelled due to an owner receivership termination. I already invoiced on 10/1/09 for services to be done this month, based on a 12-month contract rate, and received payment already. Now I want to bill 100% for the services completed and will include an adjustment for the monthly contract rate. I think that's fair. Balance owed is $230. Who should receive the final bill, the management company under contract or the new nationwide management company that took over the property? - Is this your question? Add additional information