Is it similar to criminal defense or PI where an attorney seeks out the case and will then take a large fee if they win?
The concept of class-action lawsuits isn’t as relevant here, and there is no such concept as “punitive damages”. The best you can hope for is a court order granting you whatever Igor is in dispute plus any actual damages.
Lawyers’ fees and court costs are also awarded to the winner by default, with a sliding scale for such fees based on the value in dispute. You can sometimes find a lawyer who will take your case if they are optimistic as to your chances, but of the cases I know, this mostly happens when the lawyer also has some ideological interest in it (say privacy or labor law).
There is insurance you can buy that will cover legal costs, but you will need to convince them of your chances in any litigation that you want to initiate (as opposed to being sued). There are also a number of non-profits that offer legal services for specific issues, typically in exchange for yearly fees: unions, tenants’ organisation, and even dog owners’ or RC airplane clubs.