University of Denver, Loyola Chicago, and DePaul. I am definitely going to PT to one of those schools next year and would love to transfer after my first year but I obviously wouldn't if I couldn't get done in three years since PT is cheaper. Is there summer school in law school (that was a joke but not really).
If the school offers a PT program, it is very likely that they offer summer courses. Transferring to FT generally involves catching up by taking 2-4 courses. If summer classes are offered, they can easily be made up then (either/both summers). You may also be able to increase your load the last 2 years to offset this. Summer programs abroad can help with this too.
I would imagine the schools you are looking at would not make it too hard to transfer to FT, but I could be wrong. Check with the schools and any students you can find from there. The admissions office may have to tell you that it's difficult, but there may be plenty of evidence of only needing to be in good standing to transfer.