Not a lawyer but been through the incorporation process a few times: get a startup lawyer and commit to spending $2-5k just on legal fees in your first year. Each patent you want is $20k so you should probably not waste your time or money with one unless you're damn sure you need it and it's essential to your business.
If you screw up the paperwork it will prevent you from raising money or work with others and kill your business. Honestly, I know it sucks to have to pay money that seems unrelated to your startup, but you'll pay it back many times over and have to set things up properly anyway
Ya, we hired a top tier SV firm. They just used their own fill in the blank forms like you would get from legal zoom. And I even had to make corrections and send it back multiple times because they got the share numbers wrong and forgot to replace multiple mentions of the last company they used the form on.
If you screw up the paperwork it will prevent you from raising money or work with others and kill your business. Honestly, I know it sucks to have to pay money that seems unrelated to your startup, but you'll pay it back many times over and have to set things up properly anyway