Rents are now rising at the fastest rate for six months, standing last month at an average of £793 across England and Wales.According to LSL firms Your Move and Reeds Rains, average rents are 2.4% higher than in April last year, equating to an extra £19 per month.In three regions, the east midlands, west midlands and east of England, rents are at an all-time high.A number of tenants are struggling to pay rent, with 9.1% of all rent due in arrears, compared with 7% in April last year.