If the property has a lien on it, can it still be sold?

More detail is needed, especially concerning the relative dates of the lien, the commencement of the foreclosure action, and the dates the mortgages were entered into or recorded. If the underlying debt has not been paid, and the statute of limitations has not passed, then the debt still exists and you could try to collect it. Your mechanic's lien (at least in Wisconsin) only lasts two years, so it may have expired by the time the foreclosure was commenced. If your lien has not expired, and it was placed on the property before the foreclosure, then you may very well still have a lien on the property despite its having been sold. Consult a skilled real estate lawyer in your locality.