The probate may take longer than 10 weeks to get. It won't be granted , with the executors have power to distribute or deal with the estate, until the Revenue have been paid the inheritance tax due.And administrating the estate itself, agreeing other taxes other demands, reliefs and valuations, the selling of businesses and so on may take much longer:an example, not atypical, is my own mother's estate, she died 4 years ago but the estate is still not wound up. But your charge is safe for as long as the house,less any charges having priority over yours, is worth enough to cover it. As Barmaid says,nobody's going to be able to sell it without your agreement.