Joint tenancy: two or more own with the right of survivorship (when one tenant does his share passes automatically to surviving joint

tenants);  interest is alienable but not devisable or descendible; all 4 unities required for creation (I ? Brad PITT); right to partition;

must state explicitly that joint tenancy with right of survivorship is intended; must use a straw to create joint tenancy in O and A;

severance: sale (buyer is a tenant in common), partition (voluntary, in kind, forced), mortgage (in a title theory state), creditor sale,

or murder