I have issue regarding the site i have client with site www.bellagioveinclinic.com but the issue is with same content the site is also on two different domain www.bellagioveinclinic.org and www.bellagioveinclinic.net Now i want to know how google react if i start the SEO in one of the any site.
It's far better to keep just one domain whether it'll be .net or .org. Whatever you did is really bad in terms of Google. You have the same content on two different sites that's really not good. If you want to keep both domain then you need to change one of your site's content completely otherwise it'll not worth you if you do SEO of anyone of them. Second alternative is that you can keep only one domain whatever you want and if you do not want to loose your current traffic then you can add a permanent redirection from one to another. Whatever you like most... Thanks...
its completely duplicate site your one site will be penalized because of using 100 % copied content. its better to keep one domain per website otherwise change content of other site.
Aileenwuornos is right, that is content duplication which is bad in optimisation, therefore, bad in the eyes of the search engines especially Google. That has become a rule now, each website needs to have a unique content to keep up with the competition. Not only that, one of your domains will be filtered by the bots because of content issue. If you want both domains to have a good chance of getting indexed, then you have to make each domain's content unique and of high-quality. Chestercaldwel's advise is also good.
You can't keep same content on two different domains. Same content on two different domains is counted as spam by Google. It is better to promote one website or write different content for one website.
There is 80% chance of getting these sites black listed from google very soon, as this practically happened.
That surely won't go for anything good at all. Specially now that the update of Google AKA panda is putting sites with duplicate contents to junk.
Your one site will be banned by google because of using duplicate content, try to write new content or redirect your website.
I have seen both of your sites. Both of them have same contents. Your sites will be penalized by Google if you do not add original contents to one of them. After Google Panda Update Google is really strict about duplicate contents. Change the content as fast as possible.