A lien is a legal claim that can affect a property or the money due at closing. A payoff is the current amount and instructions from the creditor or tax office to settle an obligation. An older bill or statement is a useful starting point, but the creditor or office confirms the current figure and payment or release instructions.
You don't need to pay off your back taxes before we settle. We buy houses with back taxes and liens — payoffs get handled through the closing, not by you upfront.
The title company checks ownership and recorded claims for the sale. The creditor or county office confirms its current payoff information, and the closing figures show how agreed payoffs are handled. If a balance affects whether the sale can close, the current figures and any arrangement for that transaction need to be addressed before closing.