The respondent may disagree with the relief asked for by the petitioner and want the court to hear his or her side. The respondent then must serve an Answer on the petitioner's attorney within 30 days of the date the respondent was served. An Answer is a legal paper saying what the respondent says back to the Petition. Just calling up the petitioner to say something like "I don't like this" is not an Answer. The Answer may be mailed to the petitioner's lawyer. It does not need to be personally served. The Answer states whether the respondent thinks the petitioner's statements in the petition are true or false. It also tells the court what the respondent wants.
In addition, a finding of irretrievable breakdown must be supported by evidence that either a) the parties have lived separate and apart for a period of not less than 180 days immediately preceding the date of service of the divorce petition; OR b) there is “serious marital discord adversely affecting the attitude of one or both of the parties toward the marriage.” 
Most courts give parents the opportunity to work with independent evaluators soon after the case is filed to see if they can reach an agreement about custody, parenting time, money and property. The two types of ENE are: Financial ENE (FENE) to settle financial disputes and Social ENE (SENE) to settle custody and parenting time issues involving their children.