I agree the road name sounds like a made up name, but here is the google map link to it.

https://www.google.co.uk/maps/place/11780+W+Sample+Rd,+Coral+Springs,+FL+33065,+USA/@26.272738,-80.2847226,15z/data=!4m2!3m1!1s0x88d90ffc7b96c391:0x741a886eecd372b8?sa=X&ei=Zp9JVPKkB6be7AaM3oHYCA&ved=0CCAQ8gEwAA

Silver law group of 11780 West Sample Road appears in this Corporation Search, so it looks like it's a real law firm.

http://search.sunbiz.org/Inquiry/CorporationSearch/SearchResultDetail/EntityName/trade-t12000001123-bfa00bb2-bd3c-4c75-a905-509f6213edb1/SILVER%20LAW%20GROUP%20/Page1

Finally, silverlaw.com domain is registered by Silver law group of 11780 West Sample Road, according to this search.

https://who.godaddy.com/whoisstd.aspx?domain=silverlaw.com&prog_id=GoDaddy&k=LAtQrABq9963C+ERQ2qotl64vR0gmWzcjCUlY2%2fYbjlyK7j9tHL%2fMUzesbHbqkac