I'm considering starting a side-business doing surveys (natural resource and maybe for insurance) using a drone in purchasing. I'm first going to get the appropriate licensing.

1. Any type of software which would be the best to stitch aerial pic goes together? Best photo-editing software?
2. I know I'd need to get my equipment insured. Best provider for this?
3. Any other considerations?

It doesn't seem like the area I live in is very saturated from a quick google search I did. I'm going to put together a portfolio by doing some in-kind work for some former employers who are fine with me doing it for them. I'll also build a website, etc.

Thanks for any assistance.
I know a lot about a little, and a little about a lot.