The comma may be separating the subject and verb in your sentence. Consider removing it.
The noun phrase major role seems to be missing a determiner before it. Consider adding an article.
The noun phrase tax seems to be missing a determiner before it. Consider adding an article.
It appears that there is a missing preposition after the word consisting. Consider adding the preposition.
It appears that in laws is missing a hyphen. Consider adding the hyphen(s).
It appears you have attempted to use the intransitive verb disagreed in a passive voice construction. Consider writing the sentence in the active voice.