Looks like, out of the Ivy League schools, Harvard, Yale, Dartmouth, and Penn do disallow transfers with more than 2 years of college credit (based on their web sites), but Cornell, Columbia, and Brown do not list such a restriction (though they may have restrictions on transfer credit or require at least 2 years’ worth of course work after transfer). Princeton currently does not admit transfer students, although it may in the future.
For comparison, UCs cap lower division transfer credit (including all community college course work) at 70 semester units (105 quarter units), which is slightly more than the 60 semester units (90 quarter units) that 2 years normally is for students who want to graduate in 8 semesters. This applies both for applicant eligibility and transfer credit. However, all transferred courses can count for subject credit.