Help Marcelo with a plumber's skills: faulty wiring that trips the power and smells of burning

In May an inspector told me that my home has faulty wiring that trips the power and smells of burning. It's a safety risk for me and my newborn. The landlord has refused to act, and quotes of $490 are beyond us. I'm looking for a licensed plumber who may be able to donate a few hours or do the repair at cost. I can cover the parts, which I estimate at $50. The job should take about six hours. I'll make sure someone is home and will provide refreshments. I can share the inspector's written report on request. If you're a plumber and can help, or know a program that assists with this sort of repair, I'd really appreciate it. Thank you so much.