Precession Correction

Do you offer precession correction in transits or solar return charts?

NO WE DON'T.
Because we do not consider the method logical and consistent in
itself.
Tropical astrology uses a frame of reference which moves with the
rhythm of the Sun-Moon-Earth system. The technique of "precession
correction" breaks this system trying to introduce a notion of "natal
birth marks in absolute space". This is false on several levels:
The reference frame it introduces is not absolute, it translates and
rotates with the (fast) movement of the solar system within the
galaxy. A transiting planet does never return to the point in absolute
space where it once was.
The concept of "return charts" and of transits altogether is - on a
deeper level - a symbolic concept rather than a physical concept. It
should therefore be applied in a consistent symbolic system and not in
an inconsistent potpourri of systems.
If you want to get around precession, we recommend to do "sidereal"
astrology with one of its unprecessed reference frames. We don't think
it makes sense to mix incompatible systems.