The thing which the investor would probable advise Liam to do is:
This refers to the planning which is done when a person is starting a business which involves the use of research to understand the target market.
With this in mind, we can see that the local investor would probably advise Liam to write a business plan because it would help him better to set up his company.
Read more about business plan here:
https://brainly.com/question/25311149