Don't disturb your mom. She's probably like my parents -- she's remained Episcopalian because she's found a quiet little parish where what's going on at the national level doesn't affect her. So long as they don't have to replace their rector, they'll be all right.
My parent's church owns its property under a deed of gift that will revert to the donor if anybody other than the parish (the national church for example) successfully asserts a claim to the church and the graveyard. They also have a very nice endowment with similar strings attached to keep 815's fingers off it. They can afford to call an orthodox pastor -- so long as such an animal exists. They are in their 80s, so this arrangement will most likely last out their time (although their bishop is retiring, so who knows what will happen next).
Episcopal Priest: "God Rejoices in Abortion"
Johnson's* Law: It is impossible to parody the Episcopal Church, because they always catch up and pass you.
*Christopher Johnson of Midwest Conservative Journal.