I am looking for a legal insurance

I don't know what you mean by "legal insurance."  Certainly, many types of liability insurance policies that cover lawsuits brought against you - automobile insurance policies cover claims brought against you for motor vehicle accidents, a homeowners' policy covers claims brought against you for an injury occurring on your property, errors and omissions policies for corporate officers and directors cover suits brought against them for wrongful activities in connection with their corporate duties, etc.  These policies generally cover both liability and the costs of defense, with certain exceptions, e.g. deductibles, policy limits, types of activities (for example, intentional wrongdoing) or damages (punitive damages) which are not covered.  Basically, you can buy insurance to cover just about anyting if you are willing to pay the premium.