Can both parties be represented by a single lawyer and does each party need to have a lawyer at all times?
Both parties in a divorce should not be represented by a single lawyer. Generally, representing two people with different goals might be impossible for one lawyer. Your spouse’s lawyer is not looking after your interests and they are not getting paid to be your advisor. Alternatively, if both parties can reach an agreement, then the spouse without a lawyer could still communicate with the other spouse’s lawyer to iron out details, therefore another lawyer would not be necessary. (As long as the spouse without the lawyer understands that the lawyer is their adversary.)
These are hard times, and divorce is expensive. If you are going through a divorce, and it is amicable, or at least the spouses are able to communicate, consider collaborative divorce as an alternative.