  LIN 358 and SMC N73 are two symbiotic binaries in the halo of the Small
Magellanic Cloud, each composed of a hot white dwarf accreting from a cool
giant companion. In this work, we characterize these systems using a
combination of SED-fitting to the extant photometric data spanning a broad
wavelength range (X-ray/ultraviolet to near-infrared), detailed analysis of the
APOGEE spectra for the giant stars, and orbit fitting to high quality radial
velocities from the APOGEE database. Using the calculated Roche lobe radius for
the giant component and the mass ratio for each system, it is found that LIN
358 is likely undergoing mass transfer via wind Roche lobe overflow while the
accretion mechanism for SMC N73 remains uncertain. This work presents the first
orbital characterization for both of these systems (yielding periods of >270
and >980 days, respectively, for SMC N73 and LIN 358) and the first global SED
fitting for SMC N73. In addition, variability was identified in APOGEE spectra
of LIN 358 spanning 17 epochs over two years that may point to a time variable
accretion rate as the product of an eccentric orbit.
