Need advice (Toronto)

Hi All,
I am new in this forum. I have some concerns regarding my immigration Process. The thing is, I am going to apply the PR in Canada under the new express entry. In the process, I got an email from Canadavisa.com.
They email me and informed. They can handle my case.
Here is detail of the person,
David Cohen, Attorney at Law
(Canadian Immigration Law)
_______________________________________________________
CONTACT INFORMATION:
1.514.937. Protected content (Direct)
1.514.937. Protected content
The Law Firm of Campbell, Cohen (Attorneys at Law)
Protected content Street West, Suite. 800
Montreal, Quebec, Canada
H3H 1E8
I dont know this guy is really a lawyer or just a scam on the internet.
Please suggest something. thanks in advance.