Modern Prenups and Cohabitation Agreements

Jasmine Riechmann and Elizabeth Zilberberg • May 5, 2026

In many ways, relationships and marriage look quite different than they did even just a generation ago. As cultural norms, economic realities, and societal expectations have shifted, so have the structure and dynamics of modern partnerships. Traditional, role-based relationships have increasingly given way to partnerships defined by equality, independence, and complex financial lives. Today’s couples are more likely to be dual earners, part of blended families, living together prior to marriage, and managing diverse and sophisticated assets. As relationships evolve, the legal frameworks that support them must evolve as well.


A common misconception is that prenuptial agreements are only for the wealthy. In reality, their use has grown across a wide range of couples. As it is becoming more common for people to get married later in life, often after establishing careers and acquiring assets, a prenuptial agreement can be a practical financial tool. Rather than focusing solely on wealth protection, modern prenuptial agreements can address responsibility for existing or future debt, define premarital and separate property, and protect business interests or professional assets. Modern prenuptial agreements are also increasingly being used to capture modern relationship values issues such as career sacrifices, dual earners, student loans, and non-monetary contributions. Additionally, assets are becoming more complex. Assets such as cryptocurrency, startup equity, and intellectual property often fluctuate in value and can be difficult to quantify at the time of the agreement. Careful drafting allows couples to plan for these uncertainties in advance.


Although many people feel uncomfortable discussing prenuptial agreements, these conversations do not need to be awkward or adversarial. Negotiating a prenuptial agreement encourages open communication and thoughtful decision-making. Rather than being a sign of distrust, these agreements are often a reflection of mutual respect and a shared commitment to clarity and transparency. In many ways, it allows couples to address difficult topics proactively, strengthening communication and trust before marriage begins. Modern relationships are diverse, dynamic, and deeply individualized. In the event of a divorce, dissolution, or separation, the law, by contrast, still relies on general rules that may not fit every couple’s reality. Thoughtful planning in advance of marriage allows you to bridge that gap.


Just as marriage is evolving, so are relationships and the path leading to marriage- or the decision to not get married. More couples are choosing to live together, purchase homes, and merge aspects of their financial lives without ever entering into a legal marriage. While this reflects modern relationship norms, it can also create significant legal and financial challenges.


One of the most common issues for unmarried couples is the division of property and assets acquired during the relationship in the event of separation. In Ohio, the law provides clear guidelines for married couples, drawing a distinction between marital and separate property for purposes of equitable division. However, those protections do not automatically apply to unmarried partners and there is no automatic framework for equitable division upon separation. Assets are generally titled to the individual who owns them and are considered their separate property, even if both parties contributed to them in meaningful ways. For example, if one partner purchases a home solely in their name, that property may remain entirely theirs, even if the other partner contributed financially to mortgage payments, utilities, or improvements. Similar issues can arise with bank accounts, investments, and business interests.


These situations often come as a surprise. Couples may function as a financial unit in every practical sense, yet the law does not automatically recognize those contributions without a formal agreement in place. Cohabitation agreements can help address these gaps. These agreements allow unmarried couples to define financial arrangements, property rights, and expectations during the relationship and in the event of separation. In Ohio, they are enforceable through the common pleas courts and may provide one of the only reliable ways for unmarried couples to secure certain legal protections.


For couples who choose not to marry, there are other important considerations. Unlike married spouses, unmarried partners do not have automatic rights to make medical decisions, access medical information, inherit property, or remain in a shared residence that is titled solely in the other partner’s name. Without proper planning, a partner may be excluded from critical decisions during medical emergencies or left without legal protections in the event of death or separation. For couples with children, further legal considerations may arise, particularly in the event of separation or conflict.


Modern relationships are diverse, dynamic, and deeply individualized. Thoughtful legal planning allows couples to proactively define their expectations and protect what matters most to them. If you are considering marriage, living together, or simply want to better understand your options, you can contact our office to learn more so that you can make informed decisions that align with your goals and values.