If a character were to die, would they keep their total level and put it all into Lingering Soul?

For Shadow of the Grave, while possessing someone do you still suffer the sunlight effects?

— Patron of Burden (@Erratication) November 14, 2017

Technically YOU are not in direct sunlight, so no. However, if you impart your host with the features, THEY do.

— Matthew Mercer (@matthewmercer) November 14, 2017