Hiring overseas UX profesional to aid our product design process

For example, you have a product that has been run in a specific country then your CEO wants you to expand the market to another country with a different culture and language. Do you think it's wise to create a specialized product to cater to the market in the new country? if so, how does it feels to partnering to local UX team/agency/professional to help your design process? especially the user research and maybe usability testing.