Make sure her room is dark and there is white noise like a fan and you have music playing on continous play. This will help her keep asleep.
Do NOT let her sleep unless it is night time or nap time. If she falls asleep in the recliner you will be in a cycle of her sleeping when you don't want her to. You need to reset her clock. So, for tomorrow, get her up at whatever time you want to be her normal up for the day time, say 7 a.m. Then give her a bath, get out the playdough, bake with her, etc. and keep her busy until it's noon. Then let her nap. Don't let her nap for more than 3 hours though, you want her sleeping at night and are in the training phase. AFter a 3 hour nap wake her up and again, keep her awake by doing the same things - a bath (yes, she might end up with a few a day in this training phase, it's hard to fall asleep in water when you are a kid), a new toy, an outing to somewhere fun (but don't let her fall asleep in the car), etc.
Put her down for the night at 7 pm. 7:30 at the latest. Since she didn't get to catch up on that lost sleep from the night before she should sleep through till morning. If not keep repeating (reinforcing the schedule YOU want) until she gets into the right sleep habits.
This will work, I've done it.
N.