DBA vs Registering as Foreign LLC

[Earl Stewart Jr]

I have 2 questions. My home state is Illinois and I am considering Delaware, Nevada, or Wyoming to form my series LLC due to the cost but yet do business in Illinois. I know that I would have to register my Delaware LLC(example) in Illinois as a foreign LLC to do business here and pay the fee. Is it possible to file a DBA(Doing Business As) with the state of Illinois and avoid the Foreign LLC fee for registering in Illinois? I believe the DBA fee is $99 and the Foreign LLC is $500. Big difference. Is there an advantage by doing one over the other?

Also, I know there is a convenience by doing the LLC in your home state but is there more of a benefit to doing it in other states? Do they offer more protection? Are the laws better suited for LLCs elsewhere? I apologize for the long message. This is a big step and want to ensure everything is done right and I'm not missing anything...lol.