If she is the beneficiary and the executor, she will be able to stay IF the condo is not foreclosed upon (e.g. if there is no mortgage when you pass away, which mortgage is not then paid). As the beneficiary, it will be coming to her; as the executor, she will be the person with the legal authority to determine what is in the beneficiary's (i.e. her) interest. So long as she can pay an mortgage, taxes, condo fees, or other costs that could lead to foreclosure, if your will names her beneficiary and executor, she will be able to stay.