I live in Rincon (northwest coast) and your situation is similar to others who have moved here. Not knowing Spanish would not be a problem here for your husband if he worked as a chef; I also have friends who are entrepreneural amd have started their own small businesses. The environment in the Rincon areas is delightful, stimulating, friendly, and safe. There are many places to rent here for reasonable prices. The aforementioned is the "rosey" party. People who move here go through ups and downs about their decision. The Puerto Rican culture is real different than what you're used to in the USA. I like it very much but if you don't then you'll be out of here.
I recommend that your family visit first (whether it's Rincon or some other place that interests you). Get a sense of how you like it. Talk to people (a really easy thing to do in Rincon), your husband can visit prospective employers while he is here.
My wife and will be in Rincon this July and August; if you visit then we would be more than glad to show youy around and introduce you to people.
I can also arrange for you to talk/email people that have moved there. If you want to contact me please use my email: victorlglass@gmail.com
Wish you luck. It's an adventure!