I know parking is always an issue, I've put up with my neighbours crappy parking for 3 years now but I'm trying to sell me house and some feedback we've had is neighbours crappy parking 
Our drive is slightly separate to our house and they often block the entrance to it. We ask them not to, knock on their door to ask them to move but they just ignore us. You can hear them shouting at their kids inside to not answer the door to us. And it's not just us, they block in other people too because they think they own the road.
They simply couldn't give a flying fuck and I'm at a loss on what to do. They rent but their landlord doesn't care either.
I have 4 viewings tomorrow and I'm so worried that they are going to ruin our house sale because of it.
Any advice would be appreciated!