If a real estate agent wanted to use you to get photos/videos for their business, do you need to get a certificate or something (forgive my daftness as I have no idea).
Mavic Pro takes a lot of experimentation to get results that you want. Having a photography background will help. Watch YouTube videos for obtaining the best results.
I think the Mavic 2 with the larger sensor will put it on Par with Phantom 4 series.
I'm not a professional photographer but I'm very happy with the results of the stills I have taken so far during flight
The good quality of the camera amazes me since this is a really "small" camera compared to my Canon 5D.
A couple of days after I got my MPP I shot these stills.
Since then I have aquired a range of ND filters and I'm looking forward to shot similar stills the next time we are in the same region.