The councils are so unfair to advise tenants not to leave rented properties until the eviction order comes through. They are doing it to save themselves money (otherwise they have to find emergency/ temporary accomodation for people eligible for housing assistance), but it can cause real issues for property owners who have tenants.
My friend lets out her flat and has a big mortgage. Her tenants stopped paying rent (no right to reside in the UK so no right to benefits, job, etc). Tenants have small children so the council will have to rehouse them at least temporarily if the family ends up on the street). My friend issued a possession claim and it took many months until the case was heard in court. The judge adjourned the case as the tenants pretended not to speak or understand English, so another hearing had to be set up with an interpreter. Some months later a Possession order was granted, but the tenants refused to move out because the council had advised them to stay put until the eviction warrant was granted, which took a while longer. All the while, my friend didn’t receive a single penny from them and almost lost her flat to the mortgage company. So unfair!
I know this is completely different from your situation, but I feel both tenants and landlords have to play fair. If you don’t move out when s21 expires because you can’t find anywhere else to rent, why do you think you’ll be able to find something when the possession order comes through? Plus, when potential buyers find out that the tenants have remained in the house after s21 expired, they’ll know that the tenants have no intention to move until the day they are evicted, so nobody will make an offfer on the house. Please don’t make your problem someone else’s problem.
Edited to say SORRY op, I’m being harsh in my post, I’m obviously projecting as I’m so upset for my friend. I know you’re v reasonable, you’re allowing viewing, you’re planning to move and I can imagine how anxious you might be.