Google plus reviews and multiple company profiles

[VUK-SEO]

We have a Google plus profile for our brand/ organisation which has become quite powerful. We are conscious that we don't want to miss out on local search queries so want a local page but we don't want to get rid of the company page that we have built. We are a nationwide website with one physical shop.

1. Will having a local business Google plus page and a company Google plus page be seen as duplicate or in any way negative- especially if you are posting similar/ the same links and content on both pages.

2. We also want to encourage reviews- is it possible to leave reviews on company pages or is it only though local G+ pages? There is a reviews tab but it does not seem possible to leave reviews. On the main Nike G+ page  is it possible to leave reviews or would those companies have to set up local pages for people to review?