sorry have not been back for a while. but yes. i got everything worked out. luckily my mom's lawyer who did here trust/will/etc. has gone though this situation before. the tricky thing is that the one sibling needed to be paid for his share of the house *by the trust* and then the trust transfers ownership to the remaining siblings. if the ownership was transferred to all the siblings and then the one sibling later gets paid for their share, that causes an additional ownership event that then renders the grandfather-ed property tax rate no longer in effect. hopefully i explained that clearly
so... to make that happen
-- the trust takes out a bridge loan & pays the one sibling their "share" of the house from that loan
-- the trust then transfers the ownership to the remaining 3 siblings in our case it's a 25/25/50 split with my brother getting 50 and living in the house and dealing with all the ongoing house costs.
-- my brother paying off the bridge loan
i know it's weird. and lawyer also knows it's "weird" but that's how the rules work. if i had planned ahead more. it would have probably been possible for me to avoid the bridge loan by arranging moms' retirement account distribution to leave more money for the house cash out sibling instead of a share of the house. but my sister previously also wanted to cash out, but then changed her mind (on her own) and so contortions where necessary. but it was well worth the work by the lawyer, because we'll make the lawyers fees back on tax savings in the first year.