Hi wthat suits you is to marry her with separation of property,
Once you have done it you take minumn riskes and you could yo all europe aruond
You could do it in a notario once you have married her
I recomend you this attorneys
They work in UK and Spain
I will be here if you need more help
I have check the brithish embassy and they provide us list of attorneys in Spain
Click in the name of the City and you will got several names
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