Once the foreclosure process starts, the sheriff will serve you an eviction notice and you will have 7 days.

Jacki,

Once the the house has been "sold" or "taken back" at the sheriff's sale you can no longer legally reside on the property. As far as how long you have to get out, you really should be out the morning of the sale. If you aren't out, it can be handled in different ways depending on your mortgage holder and your county. You might call the sheriff's department to at least see how your county handles it.

Sheriff’s sales are generally a way for the lending institution to get possession of a property on mortgage foreclosure so the property can be resold. The lending institution can bid their judgment in addition to interest, taxes and attorney fees without putting up the cash. The plaintiff’s bid will also include the cost of the sale. So if you have a mortage on it, it will probably go back to the bank.