Progressive S&L; may have an alternative suitor.

Alhambra-based Progressive Savings & Loan Assn., trying to recover from heavy losses in 1984, said it is negotiating with Greenfield Partners, a New York-based limited partnership, under which Greenfield would inject $10 million in cash in exchange for just over 50% ownership in Progressive. However, the Greenfield deal would become effective only if a previously announced proposed takeover by Orange County real estate investor James A. Carter fell through.