If you are concerned about ongoing earnings continuing to be marital in nature, then it is in your interest to lock in the default valuation date by filing the case as soon as possible and shepherding it along swiftly. For example, if you earn six figures, but your spouse is a stay-at-home unemployed parent, it is to your advantage to file the divorce first, and then work on settlement, rather than to mediate and negotiate for several months prior to filing.
If the parents can not agree on an appropriate custody arrangement, the court will examine what is in "the best interests of the child" by considering and evaluating the following factors: (1) the wishes of the child's parent or parents as to custody; (2) the reasonable preference of the child, if the court deems the child to be of sufficient age to express preference; (3) the child's primary caretaker; (4) the intimacy of the relationship between each parent and the child; (5) the interaction and interrelationship of the child with a parent or parents, siblings, and any other person who may significantly affect the child's best interests; (6) the child's adjustment to home, school, and community; (7) the length of time the child has lived in a stable, satisfactory environment and the desirability of maintaining continuity; (8) the permanence, as a family unit, of the existing or proposed custodial home; (9) the mental and physical health of all individuals involved; (10) the capacity and disposition of the parties to give the child love, affection, and guidance, and to continue educating and raising the child in the child's culture and religion or creed, if any; (11) the child's cultural background; (12) the effect on the child of the actions of an abuser; (13) except in cases in which a finding of domestic abuse, the disposition of each parent to encourage and permit frequent and continuing contact by the other parent with the child. (Minnesota Statutes - Chapters: 518.17)
Minnesota is a purely "no-fault" divorce state, meaning that you can't allege that your spouse's wrongdoing was the cause of the divorce. Instead, most divorces are based on the grounds that the parties have irreconcilable differences that have led to the breakdown of the marriage. However, fault may be considered by the court as a factor in dividing property or awarding alimony. To learn more about whether Minnesota uses fault as a determining factor in alimony and property issues, see Nolo's Essential Guide to Divorce, by Emily Doskow.
The attorney representing either the petitioner or the respondent can schedule a temporary relief hearing. The other party must be served with motion papers, including a Motion for Temporary Relief and an Affidavit. Affidavits are written statements signed under oath. The motion papers are legal papers requesting temporary relief from the court and stating the facts on which the request is based. These facts include the income and expenses of each party, who has the children now and why they should be in the custody of the party asking for temporary custody. The motion papers must be mailed or handed to the other party before the hearing. There are certain time periods for giving notice to the other party before the hearing that must be followed when bringing and responding to motions. The petitioner's attorney often has the motion papers served at the same time as the Summons and Petition.
Under both Minnesota law,  and federal law,  as long as you yourself are a party to the conversation, it is lawful for you to record that conversation, even secretly. Furthermore, such recordings happen often enough in family practice that you are wise to assume that any telephone conversation with your spouse is in fact being recorded, and to temper your speech accordingly — i.e., no anger, name-calling, or spiteful speech of any kind.
Couples who are headed for a trial date may be ordered by the court to go through mediation before that date is set, however, mediation can also be voluntary. If the couples are unable to resolve their issues through mediation, they are free to pursue any other remedies they choose. Mediation is generally better for the children involved, as it allows the couple to make decisions which are in the best interests of the entire family in a non-contentious manner. Children can be damaged by hearing their parents argue and say things to one another that children should not hear. Many parents who end up litigating their divorce are not hesitant to say ugly things about the other parent in front of the children. Parents who make a conscious decision to mediate their divorce, are also more likely to be aware of ensuring the children are not privy to contentious behavior between the parents.
The date on which earnings (including retirement contributions and other income) becomes separate property again, is the so-called “valuation date.”  The valuation date is the date of the initially scheduled prehearing settlement conference, unless the parties agree to a different date, or the court finds that a different date is fair and equitable.  In my experience, the Court seldom exercises its discretion to use a different date. One situation warranting a different date is where the parties have been separated for years prior to commencement of the divorce, and have been living separately, with separate accounts, insurance, bills, etc., during the separation period.
The court may award either party alimony if the party seeking alimony (1) lacks sufficient property to meet his or her own needs, and (2) is unable to be self-supporting through employment, or is not required to seek employment due to being a child custodian. In the absence of an agreement by the parties, Minnesota alimony law provides that the amount and duration of alimony will be determined by the judge, after considering the following factors:
Just because an asset is titled in one spouse’s name does not mean that asset belongs exclusively to the title-holding spouse. How you acquired the property determines whether property is marital or nonmarital, which determines how (or whether) the property will be divided. Marital property includes assets purchased or paid for during a marriage. Marital property will usually be divided between spouses. Non-marital property is different, however. Nonmarital property includes assets that are acquired by only one spouse, either as a gift or inheritance, as property the individual brought into the marriage, or in some instances, that one party acquired alone during the marriage. An attorney can help you figure out what property is marital and what is not. An attorney can also advise you about how to protect your assets in a divorce.
Usually the petitioner's attorney calls the petitioner's witnesses first. Each witness is sworn under oath and answers the attorney's questions. Then the other attorney may question the witness. Sometimes the court may ask questions. Sometimes the petitioner's attorney will ask additional questions. When the petitioner's attorney has called all of his or her witnesses, including the petitioner, the attorney tells the court that the petitioner rests his or her case. Sometimes the attorneys will present their argument in writing.
Minnesota Divorce and Family Mediation offers skilled guidance on all the important issues surrounding your divorce. The mediation process consists of guided sessions to determine how assets will be divided, discuss budgets and future financial needs, calculate child support and spousal maintenance (when necessary), and develop a parenting plan. Through mediation, couples maintain control over the important life decisions that need to be made during a divorce, while at the same time developing a new foundation for their future relationship with each other. By choosing this gentler approach to divorce, couples are more likely to be able to positively work together in the future; they are less likely to return to court for post-decree issues; and they are more fully prepared to move forward for a better tomorrow.
There is no specific Massachusetts form for your separation agreement, but several probate courts have made available templates that a committed person could use for a do-it-yourself divorce or pro se divorce. You can download a Massachusetts separation agreement form, or template, for divorce with no children here, created by Worcester County probate court, or a Massachusetts separation agreement with minor children form, or template, here.
Negotiating agreements isn't always linear. You may start at what feels like the end, and you may find yourself needing to gather more information at various points. The mediator will help you to stay on track and brainstorm options, will encourage you and your spouse to express your opinions, positions, and what's important to you, and will help you listen to each other in ways that will make a resolution more likely. (You may be able to use some of these communication tools in your ongoing parenting relationship.)
If you were served with a "Summons and Petition" (you are the Respondent), you should talk to an attorney before you sign the "Answer and Counterpetition," and before you sign a "Stipulated Findings of Fact, Conclusions of Law, Order for Judgment and Judgment and Decree" (which is an agreement with your spouse on how to divide all assets and debts).