Maybe one of your boundaries could be in setting a time frame for when she needs to get out on her own, and then stick to that. 3 months? 6 months? She will need a job in order to support herself, so that could be another boundary. She needs to be employed full time by_________. Another boundary could be in paying you rent once she obtains a job, even if it’s only 25 a week, it’s something to keep her accountable and responsible.
She may become too complacent and cozy doing minimal for herself while living off of you.