Multiple domains different content same keywords

[maestrosonrisas]

what would you advice on my case:

It is bad for google if i have the four domains.

I dont link between them as i dont want no association, or loss in rakings in branded page.

Is bad if i link between them or the non branded to them branded domain.

Is bad if i have all on my webmaster tools, i just have the branded

My google page is all about the new non penalized domain. altough google gave a unique domain +propdental to the one that he manually penalized. (doesn't make sense)

So. What are the thinks that i should not do with my domain to follow and respect google guidelines. As i want a white hat and do not do something that is wrong without knowledge

[David_ODonnell]

Four domains = splitting your efforts by 4, splitting your potential links and DA by four etc.

If you work on just one domain, you can put all of your effort into it - this is the way to go.

[David_ODonnell]

301 the additional domains to the one you want to focus on - except the domain that has the penalty, if you're certain it does.