Motorhome not level

I recently bought a used Itasca Sunova, very clean and well cared for, but discovered that, when parked on level ground, the right side is about 2 inches lower than the left side.  It drives well with no issues.  My concern is this:  Highway driving lanes are built with a slight slope to the right, adding to the right lean of the motorhome.  Will I be more susceptible to overturn or loss of control with a strong left crosswind or is this really a problem to worry about?  It is possible that I have a weak or broken leaf spring on the right rear.  A fix is possible, but maybe not necessary.  Any thoughts?