Explanation
The project manager should first obtain the permits before continuing the build, as this is the most ethical and responsible course of action. Continuing the project without the permits would violate the legal and regulatory requirements, as well as the PMI Code of Ethics and Professional Conduct. Updating the risk management plan or reviewing lessons learned from previous projects are important steps, but they are not the firstpriority in this situation. Obtaining the permits is also more cost-effective than paying the fine of US$1,000 per day, which would amount to US$30,000 in a month. References:
PMBOK Guide, 6th edition, pages 33-34, 376-377, 686-687.
PMP Exam Content Outline, June 2019, pages 6-7, 16-17.
PMI Code of Ethics and Professional Conduct, pages 4-5.