Being born a klatooinian, Deaan was put into Hutt slavery when we has an adult as is per usual due to an ancient contract of servitude to the hutts. He was sprung from his servitude after the death of Ziro disilijic tiure was killed, whomst he has worked for since he was old enough to be put into servitude, when Ziro's minions scattered Deaan did the same and struck out as a freelance bodyguard for hire/general mercenary, he did this for many years, by then gathering a hefty set of stab wounds, blaster scars and a broken nose, now making him look like a certain mamillian creature from earth called a 'pug'. At around this time he became aware of a mercenary/bounty hunting/general contracting/generally shady organisation called rancorp. Wishing to make something more of his life and wishing to prove klatooinians can be more than slaves he joined this shady organisation.
The reason Deaan wanted to join rancorp was because he wanted to be more than a slave, and prove klatooinian can be more than servants to the hutts for eternity, he wanted to rise through the ranks and prove himself a person you can count on for a good job, rancorp offered him that.
In short it's a mix of greed, fame, and expertise
criminal - 10: Deaan has committed a lot of crimes during his days as a bodyguard, though not as many as when he was in servitude to Ziro. These range from criminal affiliation to murder to illegally parking his ship on a cantina roof to being arrested for vomiting on a senator and his wife at a very rich ballroom party. he is wanted by the empire so much that recently he has even seen his face on the wall of a outer rim sheriffs office.
Tallish klatooinian, various scars all over his body, most of which are covered by a thick vest meant to disperse blaster bolts, rough, calloused hands and knuckles from years of punching stuff and doing the heavy lifting for his Hutt masters. Has a nose like a pug.