Bring non EU spouse to another EU member state

[Lewis23]

I am an British citizen that has Spanish residency. My wife is Cuban and we got married there. She is in Cuba at the moment and I want to bring her to Spain to live with me. Can I bring her over on a 90 day Schengen visitors visa and then apply for her residency card once in Spain, based on marriage to me? Thereby exercising the rights under directive 2004/38 or Real Decreto 240/2007 which require little paperwork.

Or does she need to initiate the whole process from the Spanish embassy in Cuba under family reunification, which requires lots of documents and evidence, legalised etc?

[Korekt]

Can I bring her over on a 90 day Schengen visitors visa and then apply for her residency card once in Spain, based on marriage to me?

This may well be easier.

[Lewis23]

Does anyone know somebody who has done this process. I cannot seem to find even a solicitor who will push this forward, as they have repeated what the Spanish authorities have said, ie. having a tonne of evidence to prove financial standing and medical papers all legalised etc