Word-of-mouth leads in Tucson

A friend who works at a local manufacturer says there are openings not advertised online. I have read a lot of threads here and could not find my exact situation. One is a print shop, one is an accounting firm and one is a clinic. Should I visit in person?

Thanks for writing this out. I went through something close to it 13 months ago, and it got easier once I kept a simple log of every call and form.

A short email with two sentences about what you can do and your résumé attached worked for me. I followed up after a week.