NEED ADVICE: Identity theft by relative; call police?

[panAmerican]

36. Here's the back story

The guy is my paternal half-brother, but I never treated him as "less than" any full-blooded sibling. He has been an excellent tenant the last 2 years, which he brought up in his defense. He apologized and said he won't do it again. My husband doesn't believe he'll do it again, because my brother has now been exposed to the whole family for what he really is. Still my Mom's twin sister, and my Mom's brother (no blood relation to him) say forgive him, and let the signature stand for just one more year.

Over the last 12-15 years, I spent tens of thousands of dollars on him, which I have not done for any my full-blooded siblings: money to start a little merchant business; more after it was ransacked; more again for a taxi business; tuition for his kids; rent assistance, etc. I even paid for his mother to have life-saving surgery, after his brothers declined to contribute. All this money is over and above what our father and my mother paid to the State Dept to legally immigrate his family here.

After they came here, I found out that they were not living as badly as he claimed. There were times I bought things on credit so I could send them my cash. Up until literally 3 years ago, I was making a very modest income, so this wasn't "extra money" I didn't need for myself.

At age 16, 8 years ago, his oldest daughter left home. She used to call and tell me that she had to get underwear and otherwise share clothes with a cousin. Imagine my surprise when she arrives in the US with a Blackberry (birthday gift from an uncle), perfume, makeup, jewelry, etc. Imagine my further surprise to learn that she been taking dance classes, going out to restaurants, etc.

There's some political/social instability, and kidnapping is common; so it was believable when my brother called to tell me about gangs roaming his neighborhood, robbing people, etc. So instead of leaving his wife and girls back home defenseless without a man in the house, I thought it was worth the additional expense and sacrifice to bring everybody to come at once. I even talked to my husband about adding a wing to the house so that they could live with us.

My brother also used to talk about his wife's side of the family being indifferent to him and the kids, and come to find out these aunts used to visit to those kinds and bring gifts from the US! I didn't even know those aunts were in the US, much less in the same state!

At one point, I had put him in charge of distributing money I was sending for both my Mom's side and our Dad's side of the family. But finally someone had the courage to say, please don't do that anymore, even if it means receiving less money. He was abusing his position as my brother and therefore my representative. He routinely manipulated those people into lending him their money, even though I always sent more money from him than for anyone else.

I could go on with more examples, but you get the drift: I've been played for a major fool, and now I am raging. This is why, despite the risk of him getting arrested, his family evicted, and the kids separated, I feel I can't let this one slide.