network/marketing

[Ron Lopez]

So I have an llc series and my questions are

I made a webpage and I am advertising with my llc series name can I really do it this way?

now I want to make some business cards and use my llc series as my main domain? 

I do not have a business license trough the state do I really need one?

since my llc series I use for my rentals and future rentals

can I really use the llc series to do all of the above?