There is no "transfer" from one agency to another. Getting your foot in the "federal door" is beneficial for 2 reasons. First, if you can get into a 6C covered job, it stops the clock for y ou (in terms of the age limit being 37). Then, often, there are jobs that are announced ONLY to current federal employees.
It is not real common that we have guys coming out of corrections to the USMS. It happens, but it is not common. Most guys have military and LE. If you want to help yourself out, finish your degree. Otherwise, you may or may not be qualified with the info in your post. You certainly won't be competitive.
Sorry.
We bring evil things to evil people, kicking in a door near you!
."In theory, there is no difference between theory and practice. But,
in practice, there is."
- Jan L.A. van de Snepscheut
"The difference between 'involvement' and 'commitment' is like
an eggs-and-ham breakfast: the chicken was 'involved' - the pig
was'committed'."
-unknown
Working on a PhD in CQB one doorway at a time.
When the wolf attacks, he will find not all who run with the flock are sheep!