Posted: Thu Feb 13, 2020 11:59am
Most of the answers to your questions are "You're too late". Freedom of Movement as a member of the EU allowed people such as yourselves to live anywhere in the 28. After December, UK citizens moving to the 27 will be classed as '3rd country' and will have to be able to meet criteria such as proof of income & private health insurance.
As for work, unless your husband could scratch an erratic living from the other poorly integrated 'expats' who don't want to use Spanish speaking services, it would be almost impossible to find work. The Spanish unemployment is very high at the less skilled level, and after Brexit UK qualifications will not be recognised at the professional level.
Your best hope is to reverse Brexit.