I put "--" when there is no middle name. None is appropriate for example if they ask if you have a former spouse. That means you considered the question and responded that you have no former spouse. If you answered None that you don't have a former spouse and they ask in the next section what is the name, data of birth etc. then put N/A.
Lynne R. Feldman, Attorney at Law
Concentrating in Immigration Law
2221 Camino Del Rio South, Suite 201
San Diego, CA 92108 | (619) 299-9600
Fax: (619) 923-3277
Former Adjunct Professor -- Immigration law
University of Illinois College of Law
No 'non-Roman way' to spell a name? Really? Look at their passport.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- email@example.com -- www.capriotti.com -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.
If there is no middle name you can leave the space blank. If you are not filing for a spouse, then you can leave blank the space that asks for the address if you are filing for a spouse (because you are not filing for a spouse). If the person's name is writtenin Roman letters in the native language, then you leave blank the space that asks for it to be spelled in the native language if non-Roman characters.