You can always sue - the more important question is whether or not you will succeed. As the above attorney said, you should contact a civil rights attorney in your area and discuss the case with him or her. While government employees/entities have qualified immunity in many situations, it is still possible to hold them accountable for certain wrongs. A good lawyer should be able to analyze your case and point you in the right direction.
It sounds like you have a valid defense. Like the above attorney, I would suggest finding an attorney in your area. If you weren't the renter, an attorney should be able to defend your rights and help you achieve a successful outcome in this case.
Unfortunately, there is not. The child support Obligee (husband) can waive support through an agreed entry with the court. The Obligor (your friend) cannot waive it. If support is contested, a petition to stay the execution of the support order could be filed with the trial court, pending the above court's decision. However, if the husband has custody of the two children, the court would likely hold that support be paid as ordered.
The answer to this question depends on a number of different factors. You should certainly consult with an experienced personal injury attorney in your area to discuss the specific details of your case. Keep in mind, there are time limits (statute of limitations) for bringing your claim. If you wait too long, your claim could be forever barred. In Ohio, the statute of limitations for an intentional act is only one year. Best Wishes.
A private company can do whatever they feel is reasonable to provide the services they are hired to perform - that includes turning customers down. While I'm not sure of the specifics of your situation, I am confident that you should contact an attorney in your county to find the answers. Good luck.
First, find a good domestic relations attorney in your area. With the attorney's help, you should be able to use account statements, receipts, taxes, etc. to develop a financial timeline establishing your pre-marital contributions.