The trouble is with giving advice is that it refers to the situation now....depending on when Article 50 is triggered then any advice could be incorrect in future...especially as no date has been given for this act by the UK Premier Mrs, May ( or ´´Mrs. May not´´ depending on which school of thought over Brexit you subscribe to
At the moment and for the foreseeable future then current rules apply....which are:- you will be required to register for residency within 3 months and to comply with this you will need to prove the following..
.that you have funds to support yourself,currently around 4,500 euros, in a Spanish bank account.....
.that you have private medical insurance to cover you until and more importantly IF you can find work (unemployment here still around the 30% mark) and join the Social Security system here....
and that you will not become a ´´burden on the state´´
Applying for residencia cannot be done until you get here as you will require proof of a rental address /contract( contrata temporada) or proof that you have purchased a property here (escrituria)
As I said the biggest hurdle will be finding employment and getting an employment contract ( the two do not necessarily go hand in hand) followed closely by the almost impossible task of trying to find an affordable rental property at the moment.
Oh dear Robert.....anyone else is free to answer....it is just most of you do not
Of course the above applies to all current EU citizens ...but may (will
) change for UK citizens in the future