As long as you are UK nationals you have the right to stay and live, and work in Spain
The papers they are asking you for are the regular ones
You have the right to put the minors, your sons in the closer public school as you are residing here
The school in Spain more than 5 years old boys its compulsory, so they are forced to admit them
You will find a lot of help in your closer embasy
I will be here if you need more help
Please do not rate my answer as you are not complitely satisfied with it
Ask as some many times you need, I will answer you as sson as possible
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