A no-deal Brexit could result in a range of problems for law firms, including inter-office rifts, investigations by foreign regulators and increased costs for clients, according to leading industry figures.

The American Lawyer affiliate Legal Week spoke with leading lawyers about what the worst-case Brexit scenario could be for top law firms if the U.K. crashes out of the European Union without agreeing to terms— a prospect made more likely after Prime Minister Boris Johnson asked the Queen on Wednesday to suspend Parliament, limiting its ability to debate or prevent a hard exit.