Wow, this thread has been loaded with an extreme amount of technicalities. This tree is not in a city setting. It is in a private front yard. I thought maybe posting the pictures would give me some determination on what needs to be done. Tomtrees gave me a straight forward answer to remove it. I appreciate that. A few others gave some decent advice, and I realize that without anyone being able to look at it up close and personal, it is a hard thing to make a judgement call on what needs to be done. Had I known that these trees were terribly engineered and should not be planted I would have done something else, but my parents planted it long before I was even a thought on their mind.
Here is what I gather from the information I have collected throughout this thread: this Pear Tree, is a poorly engineered tree to begin with. Add to that a couple windstorms that destroyed 1/3 of the top causing major structural damage to the trunk area, and the lack of care given to it by myself; leads me to believe that the only option other than cutting it down is to "top" out some of the limbs to reduce the strain on the trunk. However, hacking this tree like where I had placed the red marks, is going to leave my parents with an ugly tree during it's dormant seasons. Out of everyone's posts, Treeclimber101, treeseer, and Rickytree seemed to be the only fellows who thought it was worth a shot to "save" this tree or at least gave me an idea on how they would try. The consensus from the rest of you didn't say anything along the lines of how to "save" this tree, so I assume you don't feel it is a good thing to do so. If these Pear Tree's lifespans are only 25 or so years then this tree is right at the end of it's "useful" lifespan as you say.
Thanks for the replies. I have taken them all into consideration and will act accordingly.
-Chad