Yes. Infact, the LCA can also be filed online (http://www.lca.doleta.gov). So your company gets the prevailing wage approved and files the I-129 to USCIS for you. When I said you can fill the application, I didn't mean you can "File" the application. As you probably noticed in the application, they don't even require your signature. The company sponsoring you is responsible for the process but you do not need a lawyer to fill out a simple application. Goodluck -M