The cleaning company at some point, maybe after suit is filed, who their insurance company is. Ultimately that's the entity you or your lawyer wants to deal with in handling your claim. Liability may be an issue depending on the facts of your case. I have written a book on this subject and you can go to my website and I am sure that will provide you with helpful information. www.carpeylaw.com.
You very well may be able to get out of the lease. An attorney who specializes in landlord tenant law is the best way to go. You can get a referral from the Philadelphia Bar Assn. A mold case is more difficult, and it depends on the seriousness of the damages. Causation between the mold and the onset of the allergy problem may also be a problem.
Medical malpractice cases are, in fact, very difficult to prove in terms of liability and damages. Pain following your surgery may not in and of itself me medical malpractice, but you need a qualified personal injury attorney/medical malpractice attorney to review your medical records.
it is simply not possible to provide "value" in answer to your question without seeing all of your relevant medical records, and speaking to you about the case. Given the 2 year statute of limitations, you would be best served by seeking out a competent and qualified personal injury attorney. By the way, I have written a book on settling your case with the insurance company, on you own, or with the assistance of an attorney, which you can find on my website and download for free, or you can...
Debt collectors may be allowed to contact your friend if they can't locate you. But they are only allowed to try to obtain information to find out how to speak to you. If they already know how to or if they tell your friend that they are trying to locate you because you owe a debt, they may have The Fair Debt Collection Practices Act (FDCPA), and you may have a cause of action.