Which law should apply for a divorce since I am Malagasy and my husband is American and since we were married in Madagascar?

Do you intend to stay in Indiana after the divorce? Often, marriages in other countries are recognized, but if you want to be legally divorced in the United States, you need to get divorced here. That means, if you want to stay here, or ever intend to get remarried in the United States, you should get divorced in the United States. The cost will depend on if you hire a lawyer, how contested your divorce is (contests about property and children, etc.). In that regard, we cannot provide you with a hard fast number, because there are too many factors that go into that response. You can always use the find a lawyer tab and obtain lawyers' hourly rates and advanced fee requirements (privately, not in this public forum). We always recommend retaining counsel, because there's too much at stake in a dissolution, but if you want to represent yourself, you can fill out the forms found at: http://www.in.gov/judiciary/selfservice/2333.htm, click on Civil (Option 1) to the right, Click Option 2 for Divorce, and follow the prompts. There is also an option for a fee waiver, should you qualify. As mentioned, it is always best to retain counsel to represent your interests, and especially if there is a lot of property or children's issues at stake. However, in the even that is not feasible, read the entire website on information for what to expect during your divorce. I provided the link above for your reference. Best wishes to you.