Deadbeat

Running away from the responsibility of parenting isn't easy physically and and mentally so your life has led to these skills.

Swift escape

You family wants you back much more than a normal one so you gotta dash.

at 3rd level Your dash action has an additional 15 feet added to it, and you get proficiency and expertise in athletics. 

at 13th level dash has +30ft movement. 

Mark of your dark thoughts

The kind of thoughts that made you an deadbeat are exerted towards your enemies. 

up to 3 times a short or long rest you can mark an enemy with these thoughts you ignore all prerequisites for sneak attack on them as well they take 1d6 extra damage from each weapon attack. 

at 17th level you can use it 6 times and do extra 4d6.

Drinking and Smoking

at 9th level when you use a drug like substance like beer you ignore negative effects and gain a +5 to charisma checks 

Jaded

you have become a much more of a cynic, thinking everybody will shun you for your decision.

at 13th level positive effects cast on you are halved in duration, but you can choose and ally to take the other half of the spell within 30ft of you. But if the effects of the spell has a drawback (like haste) you will instead only take the effect for 1d4 rounds and ignore the drawback.

Heart of the Bearer

Your inate want to pass on something from being a Mother/Father gives you the ability to pass on a skill.

at 17th level, once a long rest you can pass on a rouge class skill that you have to one other creature that shares your creature type, they can use that ability 6 times and then lose it unless stated otherwise. 

Exceptions: Thief's Cant: They keep it until next rest, Blindsense: Only keep it up to an hour, Stroke of Luck: still just once.