The links below are a series of articles detailing Microsoft's successful experience offshoring IP work:
State of the IP Industry 2014 CPA Global Survey of worldwide IP trends for Corporate IP Departments and IP Law Firms:
2015 Trends in law firm Outsourcing:
Legal Process Outsourcing – What you should know, from the British Legal Society
This is a 4-part article summarizing the issues faced by Corporate Legal Departments as they consider LPO:
Export Control
Bar Association Opinions on Outsourcing