diff --git a/.eslintrc.yml b/.eslintrc.yml
index f538db8..e0a0c0f 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -8,8 +8,8 @@ parserOptions:
 overrides:
   - files:
       - '*.test.js'
-      - '*.spec.js'
     rules:
+      max-classes-per-file: 'off'
       no-unused-expressions: 'off'
 env:
   browser: false
diff --git a/src/core/Model.js b/src/core/Model.js
index 493e6c5..b1c1833 100644
--- a/src/core/Model.js
+++ b/src/core/Model.js
@@ -4,6 +4,30 @@
  */
 class Model {
 
+  /**
+   * A utility function to define an array property on a class which ensures that each item in the array is an instance of the provided class/model whenever the property is set to a new array. This method does **not** prevent users from adding new items to the array which are not instances of the class. Use the Collection object to obtain this behavior. **NOTE:** _This method may only be called inside a class constructor. The private property (`#propName`) must also be defined on the class._
+   * @param  {Object} object   The object to define the property on
+   * @param  {String} propName The name of the property to define on the object
+   * @return {Object}          Returns the original object with the new property added
+   */
+  static defineArrayProp(object, propName, ItemModel) {
+
+    Object.defineProperty(object, propName, {
+      configurable: true,
+      enumerable:   true,
+      get() {
+        return this[`#${propName}`];
+      },
+      set(val) {
+        this[`#${propName}`] = val;
+        this[`#${propName}`].forEach((data, i, arr) => {
+          arr[i] = new ItemModel(data); // eslint-disable-line no-param-reassign
+        });
+      },
+    });
+
+  }
+
   /**
    * A utility function to define a property on a class which must always be an instance of a certain class. **NOTE:** _This method may only be called inside a class constructor. The private property (`#propName`) must also be defined on the class._
    * @param {Object}   object    The object to define the property on
diff --git a/src/core/Model.test.js b/src/core/Model.test.js
index d0bfd12..0fa41b3 100644
--- a/src/core/Model.test.js
+++ b/src/core/Model.test.js
@@ -5,13 +5,35 @@ chai.should();
 
 describe(`Model`, () => {
 
+  class TestModel {}
+
   it(`is the Model class`, () => {
     Model.name.should.equal(`Model`);
   });
 
-  it(`defineModelProp`, () => {
+  it(`defineArrayProp`, () => {
+
+    class TestObject {
+
+      #testProp;
+
+      constructor() {
+        Model.defineArrayProp(this, `testProp`, TestModel);
+      }
 
-    class TestModel {}
+    }
+
+    const testObject = new TestObject;
+    const arr        = [`a`, `b`];
+
+    testObject.testProp = arr;
+
+    testObject.testProp.should.equal(arr);
+    testObject.testProp.forEach(item => item.should.be.instanceOf(TestModel));
+
+  });
+
+  it(`defineModelProp`, () => {
 
     class TestObject {