It’s important for the public to understand relationships and potential conflicts of interest of all of our elected officials.  The best mechanism for doing so is by reviewing financial disclosure reports.  They are required at all levels of government:

Federal, US House of Representatives - http://clerk.house.gov/public_disc/financial-search.aspx.  (Senators have to file as well, but their filed reports are not as easy to find.)

Hawaii - http://ethics.hawaii.gov/2016stateofficialsfd/ 

Honolulu - https://www.honolulu.gov/ethics/ethicforms.html