Repossessions happened, and someone needed to do the paperwork. In fact, (in the U.S. (and it's not clear your story is set there) repossession of the property of people who'd temporarily abandoned their jobs to fight in the war for independence was a big political and legal issue.
Licensing of printed products was established as early as 1652. Full-time lawyers would have been necessary to register new products with the proper authorities, license each new book or product the company brought to market, fulfill whatever paperwork tasks were required to keep the publisher compliant with all other regulation, investigate any problems or questions, defend the company against any accusations, and file actions against anyone violating the company's rights.
Manufacturers with Brands
Trademarks have been around since the 1300s, but they really took off in the 1800s. Nearly every large company with a brand (fruit importers, brewers, producers of medicine, candy companies, fine jewelers, manufacturers) dealt with trademarks. Such a company would need someone on staff to file the trademark registration(s), investigate and prosecute smaller businesses attempting to sell knock-off products using your company's mark (or one confusingly similar).
Builder or Industry
Contracts to deliver, contracts by suppliers, these would need to be reviewed, approved, and likely worked on by a legal staff with the builder or manufacturing concern. Although lower-tier staff could bargain on payments and returns, unresolved problems or questions with timing, quality, price, fees, taxes and so on would rise to a company legal counsel. For a larger builder, this could easily be a full-time job.
Big need for legal help, as what could (and could not) be insured changed over time. When did freight become the liability of the shipper? The client? What was insurable (this branch of law had just started developing in the 1600s)? What was not? What was the best-practice language for policies, premiums, payouts? And investigating / defending the company against fraud.
Importer or Exporter
Although a lot of the calculating of duties, manifests, and other shipping paperwork could be done by untrained staff; I think it likely that some importers and exporters kept a lawyer, at minimum to advise on changing legal situations