hi katy,
in very simplistic terms, a trust separates legal ownership from beneficial ownership.
the trustee of the trust is entitled the legal ownership, but the beneficiaries are the real owners, in the sense that they are the ones that have the beneficial rights to it.
if i were in your shoes, i would go down there, and check the house out, and the heck with what your sister says.
even if it "gets sold right away", that is likely months away.
which means that a 2-day stay by you would not interfere with anything.
it seems obvious to me that she doesnt want you guys in the house.
the only logical conclusion is that she wants to do something there that she doesnt want you to know about.
the only thing i can think of is taking stuff from it.
your sister is not operating in what would be a typical fashion - your situation is extremely typical.
the kids should all come down, make sure that all mementos are taken, and share in any other assets that are desired.
put the rest up for sale, get it cleaned up and fixed up, if necessary.
then hire someone to either sell or lease it.
you should certainly be given the trust document.
it is not uncommon for the trustee to get some sort of approval from the beneficiaries before major things are done, like selling the house.
but all that would be spelled out in the trust document. and until you can read it, you wont know what's what.
which is most likely exactly what your sister wants - keeping you in the dark as much as possible.
this is simply a big red blinking warning sign that something is amiss !!