C# Send a Property as a Variable

[graphicsfriend]

private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
 
public Modify(object.property)
{
    object.property = new Point(100,100);
}
 
static void Main()
{
    Modify(button1.Location);
    Modify(button2.Location);
 
}

I am trying to send a property as a variable to a function so the function can modify it. I do not want to use Reflection if possible because I could be calling Modify as much as 30 times a second and do not want to decrease preformance if possible. If it is possible to make a delegate to the set() function so I could pass Object.Set() as a variable that would accomplish my goal as well.