Not when the homes are owned by a variety of trusts. Go to Robs thread on McCains homes. Take a look at the titles of the properties. None are in McCains name which means he probably didn't have much to do with purchasing any of them.
Technically McCain himself does not own any homes. He got caught in a deer in headlights moment... one in which he would lose either way. If he said "we have seven" and it turned out the McCain family owned ten... you would have wailed about how he was such a liar. He instead chose to be honest... to state that he wasn't sure exactly how many.... and you wail about how his honesty on the matter makes him an elitist. All the while ignoring the fact that NONE are in his name which makes it easy to understand why he was unsure.
As I stated, McCain is certainly "elite" in the sense that he got breaks despite his attitude problems at the Naval academy. He is also "elite" in the sense of wealth. Meaning his family has a lot of money/properties/investments etc...
But an "elitist" is one who ACTS (either through actions or words) that they are better than the "common man". McCain has not shown that characteristic in my opinion.
To be fair, I really don't think Obama is an elitist either, though some of his comments have certainly given that impression. I simply think he has gotten just a bit TOO caught up in the media hype surrounding him.