My house was forclosed last year. It came on the market this year. I came into some money. Enough to pay cash for it.can I buy it back?and will they come after me for balance?

... can i buy it back?...
You have enough to buy it outright? Sure.


... and will they come after me for ballance?
Depends on whether, under the terms of the mortgage they can sue you for the deficiency; or whether Oregon has an anti-deficiency statute. You should consult with an attorney in Oregon. And, fortunately, you have the money to enable you to do that.