In conclusion, we report the spin-polarized transport properties of Blatter's mono-radical Despite the challenge of stabilizing radical molecules in a confined environment between electrodes, our work provides insights into constructing a system where magnetism and conductivity coexist. The increasing number of unpaired electrons on going from mono-to diand tri-radicals results in an increase in the number of resonances near Fermi energy with increasing number of SOMOs/SUMOs. Our results indicate that increasing number of SO-MOs/SUMOs is not sufficient to obtain enhanced conductance and spin polarization. The coupling of magnetic orbitals to the electrodes plays a decisive role in controlling the conductance. The delocalized nature of increasing magnetic orbitals and their efficient coupling to electrodes promotes enhanced conductance and spin polarization with increasing number of unpaired electrons. This effect is further enhanced in the presence of small bias voltage.