>"hey, can I do this?"
<"no, you'll need fields from forms X,Y and the price needs to be at least Z with them"
Same goes with a law-person. Then if you're lazy you'll just look at how much they cost you in some timeframe and add that to the price, and find that you've lowballed so hard you'll get laughed out of the bidding
The second half of that also sounds unhinged.
Most sensible choice in my country is hiring an accountant to do those taxes. It is quite affordable (you pay monthly fee)
Sure, hire an accountant. Either way, charge the companies and stop doing free work. This isn't rocket science.
Since Hacker News also centers on entrepreneurship: I know quite some entrepreneurs in Germany who think this way about the bureacratic chicanery that companies have to handle, and already thought about whether hiring a hitman for these politicians would be a good idea. The hate for the political caste in Germany among many people is insane.
As to a more constructive path: bureaucracy all over EU is definitely considered a big problem (for startups, and for many others) and there are a bunch of movements aimed at addressing them at all kinds of levels. For example look at the eu acc movement.
You receive the money as contractor wages