If you fly under Part 107 the insurance is crazy expensive, to the tune of about $750/year. I had a Cessna 172 that I insured for about $900/year with way more coverage.
Seeing as this is what my buddies price list is for commercial work he would make that back in no time. He does this part time and makes a pretty good living off of it.
Standard Real Estate Package - 2 Photos ---------------------- $150.00
2- 12 MegaPixel photos, digital delivery
Gold Real Estate Package - 5 Photos ----------------------------- $250.00
5- 12 MegaPixel photos, digital delivery
Premium Real Estate Video Tour Package ---------------------- $400.00
***Recommended- YouTube video results appear high on search pages***
1-2 Min video propety tour published to YouTube or Vimeo
Also includes Gold Package's 5 - 12 MP photos
Elite Real Estate Vidoe Tour Package - 20 Photos ------------- $800.00
20 Photos and 2-3 minutes of professionally edited footage, subtitled or voice-over. Ideal for large estates and luxury properties!
Construction Progress Package - 5 Photos x 3 shoots ------$600.00
3 Separate trips at beginning, middle and end of project to 5 HQ pictures of each stage of construction.
Additional visits $175 each.