Me and OH live in a flat, 5 other flats in the building. At the back there is a small car park (enough for 6 cars) no marked parking spaces or designated parking per flat. We don't have a car and there are usually only 4 cars parked outside so probably one other flat doesn't have one either.
My friend arrived yesterday to stay for a few days, parked her car in a free spot outside. Her car is small and was right in the corner, not obstructing anything or blocking anyone in. 5 minutes later neighbour (who I know only to say hello to) is banging on my door, asking who's car it is and stating that it must be moved because only the people who own their flats have the right to park there. I apologised and said I wasn't aware of this rule, that it wasn't our car but our friends who was visiting but as we don't have a car assumed it would be okay to park. She then said that as she owned her flat and we just rented (not sure how she knows this but it is true) she should have first choice of parking and we needed to move the car so she can park in the corner as that is where she prefers. Fair enough she does live here and friend doesn't so I apologise again and say that we will move the car.
Neighbour then goes off on a rant about 'other issues' since we moved in (we have lived here 6 months). Firstly that it is only her and one other neighbour that take the bins out to the front of the flat on collection day - I admit we have not been doing this as the gate is locked with a key code which we don't know but if she gives me the code I am happy to do it in the future. So she has given me the code, fine I am happy to take the bins out now. She then states we are also not allowed to dry laundry on our balcony 
we have had ongoing problems with mould and damp in the flat and the letting agent have advised that we only dry laundry on the balcony in order to prevent this from getting worse.
I get she has a point about the bins, but the parking and the laundry is fine right? I called the letting agent and they said they will contact the landlord to clarify but they can't see any reason why we shouldn't be able to park there especially as we don't actually own a car ourselves. When I mentioned about drying laundry on the balcony the letting agent actually laughed and said of course we can use our balcony as we please.
AIBU