TO BE ORGANISED

canon things:

the olin/lands office is in a street in the cloud lake district, a quiet street with small businesses and a café. cloud lake is visible in the distance. the business was ferus' idea, initially. roan did a lot to help finance it.
him and roan both helped out trever pre-lotj in small ways like turning a blind eye to him lifting credits. his brother tike knew the resistance and would likely have joined if he hadn't died.
ferus told the eleven he was a jedi
he likes cities over rural areas
wandered 'planet to planet' before settling on bellassa
instinctively reaches for a lightsaber when threatened, even when he has none
was injured escaping from an imperial prison, but managed to do that on his own
was arrested along with roan after being surrounded by a full platoon - they gave themselves up so as to not endanger anyone else
roan states ferus had no secrets from him
roan and ferus at least once visited the neighbouring world of tati together, on a hiking trip
was in charge of a mission on the planet jabor during the clone wars
clive says there was "something odd" about him but didn't realize he'd been a jedi
served only for a short while in the clone wars, didn't like it particularly much
was very honest and open with siri, felt like he could tell her anything and that nothing could shock her
can tell roan's knock apart from other people's, honestly what a loser, what cuties
ussa has several theatres and museums
bellassans get up early to start their days in the dark so they can enjoy the long afternoon light (must be orbiting the sun at an angle or something)
can street fight
is apparently tall

body language things: pushes both hands through his hair when agitated or thinking, likes putting his feet up when relaxed, relaxed body language in general, paces when angry or excited (energy). puts his heads in his hands when distressed or tired. bit his lip as a padawan when nervous. tosses things to people rather than hand them over if he feels at ease with them. gives hugs fairly readily.

voice things: snorts when unimpressed. liberal with "ah"s when teasing or relaxed. "right" is common, both as filler and question. uses "kid" with trever on occasion, especially at the beginning. laughs easily, before shit goes to hell. not afraid to raise his voice. described as barks, shouts and yells. "whoa" and "aw" both used. "no stress". whistles under his breath when impressed.

ferus' first lightsaber is inconsistent as hell ?? it's first described as red, then bronze, and the covers of jq show it as both green and blue, so uh. I'm gonna go with green.

we know in the rebel force series that ferus doesn't get much sleep and twenty years later still has a difficult time accepting his mistakes in lotj, and also that he still refuses to let go of roan

fights with a lot of movement and uses his body; lightsaber work seems to match up mostly with form iv (ataru) with some iii (soresu) thrown in for the occasional defense/excellent deflection work in jq. in lotj it's a lot more freeform for obvious reasons but seems to still mostly pull from both acrobatics/energetic movements and defense mostly when he's in a tighter spot.
fights dirty. kicks and elbows people (IN TH E FOREHEAD), stomps on their hands, throws them at each other, uses them as shields.