Yes, you can doa will in Spain if you are non resident here, actually you should do your will here if you already own a property in Spain. As a lawyer I do inheritances for clients and having a will in Spain helps a lot, it makes the inheritance process quicker and cheaper for the heirs as you avoid the apostille to make your english will valid abroad and you also avoid official translations.
You should contact a local lawyer or the lawyer who helped you buy the property, it is not expensive and it doesn’t take longer than a week to arrange it.
oh, and a will in Spain is a personal document , if you are a couple owning the property you have to do a separate will.
Jose Maria Sanchez
tel/fax 95.2479268 mobile 619.886542