It was very nice of you to help. I'm sorry it turned out badly.
I believe God likes us to help. But as someone stated earlier the mass majority of homeless people are that way for a reason. Sometimes it was mistakes, and they just need help to get back on their feet. But most of the time, they are into 'bad things' causing them to have no cash. They don't work because they are lazy, and they get by, by using other people. You found out the hard way.
If someone is homeless sure, give them food, fix their car. But money is a bad thing. Ask what they need and buy it. Given money is usually wasted on their addictive habits, instead of the things they need.
I would be leery for the 'friend and daughter' thing. I think you are being played again. My sisters daughter has issues and we have gave her a home many times. She is only 13. But she will say anything to get attention, and likes to make up these long stories. I admit she has had a hard life because of my sisters stupid mistakes. But she likes to add to her life a bit to make people feel sorry for her. The only thing we could do is offer to take her when no one else would. And try to teach her Gods way, and about being responible, and what we could before she left our hands.
I would not fall for the daughter story. Honestly. It sounds like a trap again. But that is just my opinion. And I am not there to see what is going on.
Anyway. Good for you for being such a good person. The world needs many more of you.