Lawrence Ryan Investigations

Lawrence Ryan Investigations Chicago Illinois

Expert Cohabitation Investigation Services in Chicago, IL

Obtain Invaluable Evidence to Prove Cohabitation.

40+ Years of Investigation Experience. Contact us today to learn how we can help you on your case.

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In the eyes of the law, cohabitation is defined as an intimate relationship between two people who are living together and who are not married to one another. Cohabitation is often seen as a step towards getting married, but it is important to understand the legal implications of cohabitation, as it can have a significant impact on legal rights and obligations. This living arrangement is becoming increasingly common across the United States, and it can have implications when it comes to certain legal matters. It’s important for couples in cohabitation arrangements to understand how their rights and responsibilities are affected under the law.

Legal Implications of Cohabitation in Illinois

Under Illinois law, cohabitants have the right to sue for support and maintenance if a relationship ends. This can include both financial and non-financial support, such as housing, medical care, and even spousal support.


The court will consider the length of the relationship, as well as the financial contributions made by each partner. The court may also consider the amount of property or money that each partner brought into the relationship.


The Illinois legislature also recognizes that unmarried couples may own property together. Under Illinois law, the surviving partner of a cohabitation agreement may have the right to inherit the property of their deceased partner. This is known as the right of survivorship.


It is important to note, however, that this right does not necessarily apply to all property, and a cohabitation agreement should define which property is subject to this right.

Cohabitation agreetment

Legal Matters that Require Proof of Cohabitation

In Illinois, cohabitation is not explicitly defined by state law. As a result, the rights and obligations of cohabitants may not always be clear.


A cohabitation investigation conducted by cohabitation investigators can help individuals gather admissible evidence to prove that two people are living together in a relationship. Hiring a private investigator can help you provide proof for legal cases related to:

Legal Matters that Require Proof of Cohabitation

In the event that a cohabiting couple separates or one of the partners dies, the surviving partner may be responsible for the financial obligations of the deceased partner. This could include debts, mortgages, and other financial obligations. It is important to understand the legal implications of cohabiting in order to protect one’s finances.

Care of children

Cohabitation can also affect the rights of the partners in terms of making decisions regarding the care of children. In some cases, cohabiting couples may be seen as “joint custodians” and may be allowed to make decisions regarding the health, education, and welfare of the child.

Child custody arrangements

Courts will take into consideration the existence of cohabitation when determining child custody, alimony payment, and visitation rights. For example, if one partner has been paying the bills and has been providing financial support for the child, that partner may be allowed to continue providing such support after the couple separates.

When Should One Consider Hiring a Private Investigator to Prove Cohabitation?

While cohabitation is an increasingly popular choice, it can still be difficult to prove in the eyes of the law. For example, if one partner is claiming spousal support or is seeking certain rights related to a home, they may need to provide proof of cohabitation. This is where a private investigator can be very helpful.


In some states, the law requires that unmarried couples must live together for a certain period of time in order for them to qualify for certain rights and benefits. In other situations, proof of cohabitation may be needed in order to resolve disputes such as child custody, spousal support, or property division.

Here are a few reasons why you might want to consider hiring a private investigator to prove cohabitation.

Proving Financial Support

In certain cases, you may need to prove that one party is financially supporting the other. This can be especially important in a child support case, where the court will want to know who is actually providing for the child’s needs. A private investigator can help you gather evidence to prove that one party is providing financial support to the other, helping you to secure the best possible outcome.

Establishing a Legal Relationship

Establishing the existence of a spouse-like relationship can be especially important if it affects issues such as taxes, inheritance, or even marriage. A private investigator can help clients establish and prove legal relationships between two parties, making sure that all the necessary documents have been filed and recorded.

Cohabitation agreetment

Gathering Evidence

In some cases, it may be difficult to gather the necessary evidence to prove cohabitation. A private investigator can help you gather evidence, such as photographs, statements, and other documents that can help prove the existence of a cohabitation relationship.

Investigating Backgrounds

A private investigator can conduct background checks for different parties to make sure that there are no hidden skeletons. A background investigation can be especially important if you’re dealing with a family law matter, where the court may want to know the full story before making a decision.

How Can a Private Investigator Prove Cohabitation

Private investigators are able to gather evidence to prove that two individuals are living together, such as:

Private investigators can also help to gather evidence of a couple’s financial relationship, which can be useful in determining various rights and benefits. They can review bank accounts and credit card statements to ascertain who is paying for what. This can be especially helpful in determining whether a couple is entitled to certain benefits such as health insurance or shared tax benefits.


If you are considering hiring a private investigator to help prove cohabitation, make sure to give us a call. Our private investigators are experienced, trained, and passionate about their work which can only lead to one thing: outstanding results for our clients!