  This work addresses the calculation of local form factors involved in the
theoretical predictions of semileptonic $B$-meson decays at low-$q^2$. We
present a new approach to the method of QCD Light-Cone Sum Rule with $B-$meson
Light-Cone Distribution Amplitudes. In our strategy, we bypass the semi-global
quark-hadron duality (QHD) approximation which usually contributes an unknown
and potentially large systematic error to the prediction of form factors. We
trade this improvement for an increased reliance on higher-order contributions
in perturbation theory. Unlike the systematic error from semi-global QHD,
truncation errors are assessable and systematically improvable, hence allowing
robust predictions of form factors. For the transitions $B\to
\pi,\rho,K^{(*)}$, our predictions agree with the literature for all form
factors at $q^2=0$.
