Giving multi-month notice that rent is going up means that the tenant has X months to shop around. If the increase is too high, the tenant can push back by mov

Giving multi-month notice that rent is going up means that the tenant has X months to shop around. If the increase is too high, the tenant can push back by moving, or negotiating. This only works, of course, if you actually have a supply of vacant housing. If there's a housing shortage, no amount of notice is going to fix the rental situation.