The issue depends on how the new company bought the community:If the community had been owned by a limited liability company (LLC) or corporation (inc.) and the new company bought the LLC or inc., then they are still bound by the existing contracts. In this case, the new company bought the legal entity which had signed, and so was bound by, the contracts.However, if the new company bought only the assets of the old LLC or corporation, or the old company had been some other form of organization (e.g. a partnership or sole proprietorship), then the new company would only be bound by existing contracts if it agreed to be bound; in this case, it did not buy the legal entity which had contracted with your mother.