Thank you for your response. That is exactly what I did. However, When I leave it blank and go to the review section, it finds it as an issue and says
"Invalid characters have been detected in the entry for your address and/or city. The entries cannot include an ampersand (&), an asterisk (*), spaces after the entry or a period as a first or last character. All address fields must also begin and end with an alpha or numeric character. Please correct to make the return eligible for NETFILE."

This has nothing to do with the care of -section- you might have a "." or # put in accidently and can't see it. Try checking line by line once again. Also at time people put an O for their postal code instead of a ZERO "0" which will cause an error.

You are right. There was a (') in one of the line mistakenly I put. Thank you so much

netfile