These guides do not explain how to fill in a form: they explain what can be done once there is a dispute. Each one names the action to be brought, the limitation period that is running, the court that hears it, the evidence that decides the case and the mistake that closes the door. Every rule is cited by article and checked against the consolidated text published in the BOE (the Spanish official gazette).
98 guides across 14 practice areas · If what you are looking for is how a filing is made and what it costs, that is the gestoría and it has its own guides.