This web page by the FTC answers the following questions:

• I need to know which immigration forms to use.
• I need to get immigration forms.
• I need help filling out my immigration forms.
• Who can help me fill out my forms?
• I need to find out if USCIS has my forms.
• I need someone to talk to USCIS for me.  USCIS calls this “representing” me.
• I got a “Notice to Appear” as part of removal proceedings.
• I might have been scammed. How can I find out about my immigration status?
• I want to report an immigration scam.