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We have reviewed the renormalization procedure used in the unitarizedcoupled-channel model of Phys. Rev. D85 114032 (2012), and its impact in the$C=1$, $S=-2$, and $I=0$ sector, where five $\Omega_c^{(*)}$ states have beenrecently observed by the LHCb Collaboration. The meson-baryon interactions usedin the model are consistent with both chiral and heavy-quark spin symmetriesand lead to a successful description of the observed lowest-lying odd parityresonances $\Lambda_c(2595)$ and $\Lambda_c(2625)$, and $\Lambda_b(5912)$ and$\Lambda_b(5920)$ resonances. We show that some (probably at least three) ofthe states observed by LHCb will also have odd parity and spins $J=1/2$ and$J=3/2$, belonging two of them to the same ${\rm SU(6)}_{\rmlight-spin-flavor}\times$HQSS multiplets that the latter strangenesslessheavy$-\Lambda$ baryons.

$\Omega_c$ excited states within a ${\rm SU(6)}_{\rm lsf}\times$HQSS model