As Complainer states the OP clearly has not got a grasp of the figures on mortgage interest relief. The 75% interest relief is of far greater benefit to a landlord than the home owners mortgage interest relief.
becoming a landlord and hence a businessman should not be confused with the fact that you cannot sell your apartment.
Govt policies that 'benefit' the property market are what got us into this mess. The last thing we need is more reliefs to keep prices artificially high.Making it easier to rent out your home would enable people to trade up, which would surely benefit the property market as a whole – surely a worthwhile objective when so many people currently feel trapped.