If there was a step by step plan with 100% certainty people would just do that obviously, but that’s a ridiculous standard to have.
There are many approaches to try and soften things: from political agitation for heavy taxes on multiple properties and inheritance taxes to rent caps and so on. Ultimately though, as is currently the case, the landed class will use violence the moment they feel sufficiently threatened and any movement that wants to succeed will need to be prepared to meet that.
Like you can and will be killed or gaoled forever if you resist being homeless sufficiently hard because a piece of paper says that someone has exclusive rights to land they’re not personally using. All the rights we currently enjoy were won through sacrifice. Unionists were killed for sick leave and holidays, people were killed for voting rights, people were killed to be openly gay etc. Dismantling these tools of oppression and violence will involve violence, it is naive to think otherwise but we don’t need to go there before offering peaceful redistribution.