How to control fan with lights that has only one wire?

Your setup is different for sure. Since it’s using a 3 ways circuit to control 3 loads. First, you should ask your husband’s uncle to figure out what kind of wiring you have. Controlling lights and fans separately is all depend on the wiring you have. Since that old post above. There are now dual relay modules for controlling 2 different loads. Here is a link to that dual relay module. You must have line hot and neutral at the light fixture for the module to work.

Controlling all 3 fans/light separately could be tricky with your setup.
Unfortunately there is no E12 candelabra base for smart bulb that I know of.

Here’s the manual for the Monoprice dual relay in case your electrician wants to have a look at.
https://www.google.ca/url?sa=t&source=web&rct=j&url=http://downloads.monoprice.com/files/manuals/11990_Manual_141204.pdf&ved=0ahUKEwiq-oj-49zJAhWFooMKHeXNDzMQFggcMAE&usg=AFQjCNHC_rM9xiaWiuAU5ukIqCovJr2h_Q&sig2=7W1Yqwm2NZsYtUKfqq-4ag