  We report the discovery of 9 new hot molecular cores in the Deep South (DS)
region of Sagittarius B2 using Atacama Large Millimeter/submillimeter Array
Band 6 observations. We measure the rotational temperature of CH$_3$OH and
derive the physical conditions present within these cores and the hot core Sgr
B2(S). The cores show heterogeneous temperature structure, with peak
temperatures between 252 and 662 K. We find that the cores span a range of
masses (203-4842 M$_\odot$) and radii (3587-9436 AU). CH$_3$OH abundances
consistently increase with temperature across the sample. Our measurements show
the DS hot cores are structurally similar to Galactic Disk hot cores, with
radii and temperature gradients that are comparable to sources in the Disk.
They also show shallower density gradients than Disk hot cores, which may arise
from the Central Molecular Zone's higher density threshold for star formation.
The hot cores have properties which are consistent with those of Sgr B2(N),
with 3 associated with Class II CH$_3$OH masers and one associated with an
UCHII region. Our sample nearly doubles the high-mass star forming gas mass
near Sgr B2(S) and suggest the region may be a younger, comparably massive
counterpart to Sgr B2(N) and (M). The relationship between peak CH$_3$OH
abundance and rotational temperature traced by our sample and a selection of
comparable hot cores is qualitatively consistent with predictions from chemical
modeling. However, we observe constant peak abundances at higher temperatures
($T \gtrsim 250$ K), which may indicate mechanisms for methanol survival that
are not yet accounted for in models.
