Enclosed the contents of CoordinatorLayout in a LinearLayout, scrolling of the NestedScrollView works.

Layout2.xml

<android.support.design.widget.CoordinatorLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/main_content"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <android.support.design.widget.AppBarLayout
            android:id="@+id/appbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            android:fitsSystemWindows="true">
            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:background="@android:color/background_dark"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_scrollFlags="scroll|enterAlways"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light" >
                <TextView
                    android:layout_gravity="center_horizontal"
                    android:text="Harry Smith"
                    android:textStyle="bold"
                    android:textSize="18sp"
                    android:id="@+id/lifeline_toolbar_title"
                    android:textColor="@android:color/white"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content" />
            </android.support.v7.widget.Toolbar>
            <android.support.v4.widget.NestedScrollView
                android:id="@+id/attorney_dash_scroll"
                android:background="@android:color/background_dark"
                app:layout_behavior="@string/appbar_scrolling_view_behavior"
                android:layout_width="match_parent"
                android:layout_height="match_parent">
                <LinearLayout
                    android:orientation="vertical"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">
                    <com.daimajia.slider.library.SliderLayout
                        android:gravity="center"
                        style="@style/AndroidImageSlider_Magnifier_Oval_Black"
                        android:id="@+id/carousel"
                        android:layout_width="match_parent"
                        android:layout_height="180dp"/>
                    <TextView
                        android:text="View 1"
                        android:textSize="90sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="80sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="60sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="50sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="50sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="50sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                    <TextView
                        android:text="View 1"
                        android:textSize="40sp"
                        android:textColor="@android:color/white"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
                </LinearLayout>
            </android.support.v4.widget.NestedScrollView>
        </android.support.design.widget.AppBarLayout>
    </LinearLayout>
</android.support.design.widget.CoordinatorLayout>