You don't buy a trailer, you rent it for €20 for a few hours (or a few more bucks for the entire day), move whatever stuff you needed to move and then bring it back. No storage or HOA issues.
He said "without further arrangements". You could rent a truck too but the extra hassle involved in renting anything is often not worth it, especially if you also have to coordinate a few other things or people.
Not worth the hassle? The last two moves I've done that involved renting have been supereasy, i pre-book the wagon online and then just flash my ID, then paying afterwards
