Stealing through multiple people Person b steals a car from person a by forging the registration ie a civil manner. Then person c steals the car. How would a civil lawsuit work? Would person a sue b and c at the same time? Or sue them separately? Is the transfer from b to c conveyance even though b didn't consent? Person b now has no assets so suing them alone is useless.
I'm not sure there would be any need - or any ability to bring - any civil action. Forgery would appear to count as a Category D felony under Section 205.090 and, "In addition to any other penalty, the court shall order the person to pay restitution.", so person "a"'s damages should have been met under the process of the criminal prosecution of person "b" for forgery, with nothing further to claim. Person "c" will have stolen a car. Whether that car was legitimately owned by person "a" may only be relevant if person "c" is using their belief that it belonged to person "b" as mitigation (for example recovery of a debt - though it won't help much as this should have been done through proper channels), which again would be a criminal proceeding.
You always run some legal risk when you drive. As long as you are insured (you have a card in your hand) and you have permission to drive the car, it does not matter who owns the car. There is a difference between the legal minimum insurance coverage and actually adequate coverage, and since you are not getting separate insurance where control the insurance levels, you theoretically run some liability risk if you have an accident and the coverage is less than the damages (insurance doesn't mean that the other guy can't take you to court for the rest of the amount). There is also a risk that the housemate will do something crazy like cancel the insurance coverage for you, or report the car stolen, so you have to decide how worried you are about that possibility.
For the offense of receiving stolen goods, "tracing" does not usually apply. It must be the actual good stolen and not proceeds of illegal activity. Tracing could come up in an effort to impose a "constructive trust" (usually by a private party) or "civil forfeiture" (usually by law enforcement) on the proceeds of embezzlement or fraud, for example. Tracing in this circumstance is governed by broad considerations of equity law and are highly fact specific. The methods are fairly ad hoc and mostly come down to rules of reason. For example, a court might find that anything clearly purchased with clean assets that were not comingled with dirty assets are not subject to forfeiture or a constructive trust, but that the entire amount of comingled assets might be subject to forfeiture or a constructive trust up to the total amount less the amount of clean assets which were comingled. This issue came up in the U.S. Supreme Court of Luis v. United States in 2014 over whether clean funds of someone subject to fraud liability could be frozen to protect the solvency of someone who may have already squandered the dirty funds when the defendant wants to use the clean funds for an expensive legal defense of the case (SCOTUS said that assets purely traceable to clean sources can't be tied up so as to prevent them from being used in a legal defense of the case.) Tracing generally does not extend to a bona fide purchaser for value (i.e. someone with no knowledge of wrongdoing is paid fair market value for something or pays fair market value for an asset) of something from the person engaged in misconduct because there was no economic benefit from the transaction to either party's net worth. What if Bob offers a smaller sum of money to many people, small enough that Bob could easily afford to give such a gift to one person, but the combined cost of so many small gifts adds up to an amount bob couldn't/wouldn't have been able to afford without his supplementary income? Could someone argue that the gift they received from Bob came from his legal income, but the other gifts Bob made to others was due to Bob's illegal activities, by claiming Bob was likely to give a gift to them without the extra illegal income but not to the others etc? In this situation, the gifts would be a "fraudulent transfer" because absent his illegal assets, Bob would probably be insolvent (i.e. have debts in excess of his assets), and transfers made without receiving substantially equivalent value in exchange can be unwound by his creditors if he is insolvent himself within a certain number of years. His solvency at the time of the gift rather than tracing from legal or illegal income respectively, would be the relevant legal issue. Of course, if the amounts of the gifts were small, it might not be economic to sue for their return.
Maybe, Hence the Lawsuits In the absence of clear statute law these all circle around tort law. For the scooter companies, trespass to chattels, and for the affected landowners (who hire the removalists) trespass to land and nuisance seem applicable. In essence, I can’t take your stuff (trespass to chattels) but you can’t leave your stuff on my property (trespass to land) or impeding access to it (nuisance). If you do, I am entitled to the reasonable costs of dealing with it. Note that, as owner, you remain responsible for you stuff even if you rented it to someone else. Both sides are pushing hard into unexplored areas of law so we await the judgement with interest. Then we’ll know.
You have the right to notify the owner of the car of their vehicular trespass and the consequences of that. You do not have the right to damage the car in giving said notice. You have the right to offer to clean the gum off whatever part of the car you stuck the notice to. If you succeed in cleaning it,the other party will not have a legal cause of action, in all likelihood, since there is no damage (though with a bit of imagination they might come up with some 'missed business opportunity' loss). The court would probably find your choice of sticker to be negligent (put the notice under the wipers? use painter's tape -get some if you don't have any). The rationale 'we had no other choice' holds no water: there are alternatives. 'Criminal Damages' is a concept in UK law, but it relates to willful damage such as vandalism, not accidents. It would be an issue if you had planned to cause damage, but that seems not to be the case here.
Colorado statute 42-6-206 imposes disclosure requirements on the sale of vehicles with salvage titles. That you didn't know it was a salvage does not seem to be of concern to this particular statute. This means that you are potentially entitled to redress against the people who sold you the car as well, provided the sale occurred in Colorado and they failed to disclose it to you (i.e., you didn't just forget about it in the intervening years). Given the presence of a law specifically covering your circumstances, it may be worth consulting with a local attorney to see what your obligations are. There may be mitigating circumstances, but they are not currently obvious to me if they're there. (conventional wisdom in the industry is that all private sales are "as-is" with no implied warranty of merchantibility and no recourse for a buyer who doesn't do due diligence -- I was shocked to find a statute specifically protecting buyers of salvage vehicles)
Nothing in the description strikes me as illegal or unlawful, so I am unsure of the grounds your friend would have for legal action. The questions a lawyer would ask (in addition to that) would be likely to include : How does your friend quantify the damage? The law is great for pursuing financial compensation, but does not handle abstract concepts. Has your friend used psychological counselling services, and what was the cost? What additional financial costs has your friend borne? If your friend has written to the University and has expected a response, what is the evidence of diminished trust? (The letter suggests otherwise.) Would a reasonable person (the proverbial "man in the street") be psychologically damaged by the events experienced by your friend? Is there evidence of a pre-existing condition? You've also mentioned yourself as a witness. Did you witness the eviction, or would you be attesting to your friend's state of mind? If the latter, what are your psychological qualifications? In the main Western jurisdictions, the answer to the question "can my friend sue?" is usually "yes", but whether they stood a chance of winning the suit would probably be a better question to ask. Your friend would only be likely to win a case against the University or the Security company if they could demonstrate unlawful or counter-contractual activity by staff, and were able to demonstrate financial damages that had been caused by that activity.
Yes, the correct forum is the Local Court in the relevant state (in some states these are called Magistrate's Courts). The amount is too large ($10,000) to qualify as a small claim . If you want to do it yourself the court websites are very informative and in NSW, at least, the process can be initiated online including your paying for the Sheriff to serve the summons (they will not find the person, you have to give them an address). After being served they have 28 days to file a defence or you can get a default judgement and begin recovery. If they do file a defence then things will get more expensive. Of course, you may want to hire a local lawyer.