A: If both you and your husband's name are on the deeds for these properties, then your ownership probably was "tenancy by the entireties" - a form of ownership for married couples under which when one spouse dies, the suriving spouse becomes the sole owner by survivorship. The exception would be if the deed contained language saying that you and your husband had a different type of ownership such as a "tenancy in common."
Assuming that the deed does not have such wording stating a different form of ownership so that it is tenancy by the entireties, you do not need to probate your husband's will to sell these properties.
To know for certain what form of ownership you have, I suggest you have the deeds reviewed by an attorney with experience in this area.
A: The short answer is no. The house must pass through the estate administration. The executor must first ensure that your grandfather's debts, if any are addressed, that the administrative expenses of the estate are paid, and the required inheritance tax and any other tax obligations that may exist are addressed. Payment of all of these obligations must be addressed before assets can be distributed to beneficiaries named in the Will. Assuming all of those obligations are met, then the executor would transfer the house from the estate to you if that is what the WIll calls for. So you will need to wait a bit for the administration to be carried out before you can start doing things like changing locks.
A: Pennsylvania law says: "No common-law marriage contracted after January 1, 2005, shall be valid." If the couple were together since before 2005, there MAY be a common law marriage. However, validity of a common law marriage requires more than just living together for a certain period of years. There must be a mutual, openly expressed agreement by the two individuals that they wish to be and are married. They must publicly hold themselves out as being married. When one of the individuals is deceased, evaluation of whether or not a common law marriage existed must look to various facts and circumstances of how they conducted themselves. Such factors can include, but are not necessarily limited to: Did they file taxes jointly as a married couple? Were they covered under the same health insurance plan as a married couple? Did they introduce themselves to others as being married? Did they financially run their household as a single unit - such as having joint bank accounts, shopping for food and supplies as a single household unit etc.?
The existence or non-existence of any one factor does not by itself determine whether or not there is a common law marriage but rather the totality of circumstances must be examined.
Such cases are very fact specific and judges long disliked having to make such determinations. The uncertainty surrounding common law marriage was an important factor in the decision to abolish them effective after January 1, 2005.