How can I sue a landlord?

The landlord is responsible for condition of the premises, you probalbly have a case.

The short answer is yes. You can always sue, but whether you can recover depends upon the circumstances. If the bats are there as a result of the landlord's negligence there is a stronger argument that he is responsible for these expenses. You should contact an attorney to discuss your options.

Only if he was at fault in causing your contact with the bar.

Yes however he would have to have been negligent some way for you to win.

Unless the Landlord knew about the bats and did nothing, he can not be held liable for any damages sustained by your family.

It is possible to sue your landlord. Talk to an attorney as soon as possible.

You file a complaint in your circuit court. Additionally, should the issue be so bad that the premises are uninhabitable and you are forced to move, you may sue the landlord for "constructive eviction" and get damages for the time you are forced out. This is actually a mixture of personal injury and landlord-tenant law, so you should be able to get an attorney to take it on a contingency (no payment unless you win) basis.

Did you give your landlord an opportunity to remove the bats if this situation has been ongoing or did they just appear one day and if this was an isolated instance did the bats bite someone in your family.

To answer your question, you can sue a landlord the same way you would sue anyone else. File a complaint with a court and serve copies of the pleadings on the landlord. If the landlord is a company, the resident agent's office must be served. To respond to your question detail, though, you would have to address some questions yourself before you decided to file suit. Bats, squirrels, ants, termites, etc. often get into homes through no one's fault. That is why they are sometimes referred to as "invasive." Did your landlord somehow contribute to the home being more accessible to rodents? If you knew of a problem (e.g., a hole in the roof), did you take (or fail to take) any action yourself? Was your landlord even aware there were bats in the home? If so, what actions did the landlord take (or not take)? How reasonable were your own actions? For example, how is it that everyone in your family was bitten by bats? At any rate, you all apparently had to get some shots. How much pain and suffering can that involve? You must understand that just because you are angry or something bad happened does not automatically create a compensable event that allows you to sue others. Nonetheless, good luck to you.

Maybe, it depends. But may be able to withhold rent on the implied warranty of habitability.