Get a one-time consultation with a tax accountant to have them explain all the papers you and your employer need to file.
Or get advice from another self-employed person who handles their own taxes.
Her poetnttial employer, i.e. that family may not want to go thru this. They may just want to pay cash themselves.
If the OP push that family, then that family may just say "we will not hire you and we'll find someone else" and the OP lose
her job opportunity. The family may just advise the OP why not just accept cash and keep to herself. If that happens,
The OP can not threaten the family saying "You must hire me and pay me by the book an dlaw and rules, otherwise
I'll go to IRS and USCIS and let them go after you". Such job arrangements are usually done thru channel of family, friends,
relative arangement. You don't want such social relationship and network to go bad.
So I don't think things will always work out as the OP wishes and as we suggest because in the real world people are not
that law abiding.
It is funny that court ruling define good moral character for citizenship purpose as as good as an average citizn in the
community. In real life community, an average person just want to avoid taxes.