Take it from someone who knows - DON'T lend her this money.
I once lent a lot of money to a close friend (11k, if you must know) because his situation was absolutely atrocious for various reasons - mostly not his fault at all. He was going to lose his house, had already lost his car, he's married with two young children.. he was crying to me saying he didn't know what he was going to do. He didn't even ask me, I offered. He was paying more in interest than anything else at this point, so I said right, I lend you 11k, you pay EVERYTHING off, then you're £900 a month better off than you are now. Give me £500 a month, that still leaves you £400 a month better off than currently, plus without the stress of being in debt.
He was so so grateful to me, and I even said wait until after Christmas to start paying me back (it was September at that point).
So the time came, and he couldn't afford £500 a month. I have no idea why not, as he was paying out much much more than that monthly before. So I said okay, what can you afford? He said £300. I said okay (what could I do?)
Anyway - excuse, excuse, excuse.. A YEAR later and I've still seen nothing.
By this time I'd got with a new partner, and I had to tell him about it, as I didn't want secrets between us. He absolutely went ballistic and phoned the guy saying there's no way he couldn't afford to pay me anything at all. So he started £50 a month. Bear in mind he borrowed 11k (and I am not charging him interest!) so it would take him 18 years to pay it off. Plus, £50 a month back feels like nothing anyway.
However AT LEAST he was paying now.
A few months down the line and we wanted to book a holiday - and couldn't afford it - and my partner went mad again, saying I'd still have savings if it wasn't for this guy. And it's true. If he'd paid me what he agreed, when he agreed it, it'd be almost paid off by this point.
This time he upped to £50 a week, and that's where we are now. A long, long time later - 3 years last month since I lent it to him. Thousands still to go.
Don't do it. I was an idiot. Don't fall into the same trap.