My father left me and my sister his house can we sell it for 1$

No.  You must submit his Will to a court for probate (proving).  The court will appoint an executor, usually the person named in the Will.  That person's duty is to gather the deceased's assets, pay his bills and distribute the rest according to the Wills.  You cannot bilk the hospital or any other creditor in hope of increasing your inheritance.  You only get what is left after paying the bills.