Rental arrears are on the rise, according to the latest research conducted by the National Landlords Association (NLA).Just under half of landlords have suffered rental arrears in the last 12 months, while 37% are predicting arrears in the near future.According to the research, a typical NLA member landlord with an average portfolio of 12 lettings has 4 tenants in arrears, with the average arrears owed by tenants £2,363. Naturally, those landlords with larger portfolios have greater amounts...