You can entirely start a UG without ever seeing a lawyer and the fees are low, as long as you stick to the standard contracts available. You have to see a notary, though. A lawyer is important if you want to have complicated arrangements between the shareholders - they would essentially write your company charter.
The complicated part about having a limited liability company is that it requires double accounting and strict separation between your personal and the company property and that your books must be testified by an accountant. So you’ll need a tax accountant.
Minor note: having formed a British Ltd, I can tell you that some things are much more confusing for foreigners than you might expect. And some are outright hilariously bad. I could not negotiate a health insurance for our British employees since the insurance folks are not allowed to talk to foreigners - something something personal data something. Yes, I tried multiple companies.