Preventing Googlebot from reading the imprint

Hi guys,
so a friend of mine plans to create a copy-niche site so to say, a niche site with rewritten content, which is ranking parallel to his other one. Reason is, that he got a penalty on an important money-keyword and doesn't know if it will come back – So he wants to rank now a rewritten copy on a new domain.

So I have this question:
We don't know, If Google penalties Sites, which are in the same niche and also have the same contact data in the imprint. So what is an easy…

Preventing Googlebot from reading the imprint