hun, can you talk to both your DD and this other teen about limits - yes, you can stay here, but you WILL pay board, you WILL either get a job or go back to school (even if school is ONLY until she can get a job or apprenticeship) - if you can't BOTH pull your weight, the situation won't work etc. it can't be treated as a long term sleepover for the two girls, you need to set boundaries, you need to enforce them

you've got a humungous heart, and i KNOW you want to help - but you have to have a contract of sorts before you take this girl on - and if you DO take her on, you need to have a set thing - first warning, they're seperated (so DD back inside, the other D in the office) - second warning you start looking for alternate accommodation arrangements, third warning, those accommodation arrangements will come into play

it might just be the encouragement that DD needs to pull her head in if she sees her friend out on her ass and that yes, mum will help, but ONLY if they both do it right - and doing it right means not being their slaves - they have to help out (set up a schedule for them for chores they need to do) - and if they don't help, the party is over

you're doing a great thing simply contemplating this Lulu - if you think it through and it's too much, don't do it - but we all the person you are and if you can't take her on, i know you'll step up to offer support in helping her find her way