  The Laser Interferometer Space Antenna (LISA) mission, scheduled for launch
in the mid-2030s, is a gravitational wave observatory in space designed to
detect sources emitting in the millihertz band. LISA is an ESA flagship
mission, currently entering the Phase B development phase. It is expected to
help us improve our understanding about our Universe by measuring gravitational
wave sources of different types, with some of the sources being at very high
redshifts $z\sim 20$. On the 23rd of February 2022 we organized the
1$^\mathrm{st}$ {\it LISA in Greece Workshop}. This workshop aimed to inform
the Greek scientific and tech industry community about the possibilities of
participating in LISA science and LISA mission, with the support of the
Hellenic Space Center (HSC). In this white paper, we summarize the outcome of
the workshop, the most important aspect of it being the inclusion of $15$ Greek
researchers to the LISA Consortium, raising our total number to $22$. At the
same time, we present a road-map with the future steps and actions of the Greek
Gravitational Wave community with respect to the future LISA mission.
