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settle (one's) affairs
To deal with one's outstanding business or financial affairs. After we declared a voluntary liquidation, a third-party liquidator will come in and settle our affairs for us. You'll need to settle your affairs before you can apply for a mortgage.
settle someone's affairs
to deal with one's business matters; to manage the business affairs of someone who can't. When my uncle died, I had to settle his affairs. I have to settle my affairs before going to Mexico for a year.