  We present Keck spectropolarimetry of two rare low-ionization broad
absorption line (BAL) QSOs, FIRST J084044.5+363328 and FIRST J155633.8+351758,
that also exhibit narrow absorption lines from metastable excited levels of Fe
II (``Iron Lo-BALs''). These QSOs were discovered in optical follow-ups to a
deep radio survey; FIRST J155633.8+351758 is radio-loud, the first BAL QSO so
identified. FIRST J084044.5+363328 is highly polarized and exhibits many
features found in other BAL QSOs, and the polarization and its position angle
vary in a complicated manner across the metastable Fe II absorption lines,
suggesting that more than one mechanism is at work, or that the system geometry
is complex. FIRST J155633.8+351758 may be the most highly polarized BAL QSO
known, and exhibits other unusual polarization properties compared to other
highly polarized BAL QSOs. Currently available data cannot yet discriminate
among the possible lines of sight to BAL QSOs (edge-on, pole-on, or random).
