  The Event Horizon Telescope (EHT), now with its first ever image of the
photon ring around the supermassive black hole of M87, provides a unique
opportunity to probe the physics of supermassive black holes through Very Long
Baseline Interferometry (VLBI), such as the existence of the event horizon, the
accretion processes as well as jet formation in Low Luminosity AGN (LLAGN). We
build a theoretical model which includes an Advection Dominated Accretion Flow
(ADAF) with emission from thermal and non-thermal electrons in the flow and a
simple radio jet outflow. The predicted spectral energy distribution (SED) of
this model is compared to sub-arcsec resolution observations to get the best
estimates of the model parameters. The model-predicted radial emission profiles
at different frequency bands are used to predict whether the inflow can be
resolved by the EHT or with telescopes such as the Global 3-mm VLBI array
(GMVA). In this work the model is initially tested with high resolution SED
data of M87 and then applied to our sample of 5 galaxies (Cen A, M84, NGC 4594,
NGC 3998 and NGC 4278). The model then allows us to predict if one can detect
and resolve the inflow for any of these galaxies using the EHT or GMVA within
an 8 hour integration time.
