Is it worth buying a red copy for a public rental house of 30 to 50 square meters?

30 to 50 square meters of public rental housing, there is a little red book worth buying. Because public rental housing is much cheaper than commercial housing, the pricing of public rental housing is: no more than 60% of the rental housing price of the same quality and area around. If you have a little red book, that is, a real estate license, there is no problem and it is absolutely cost-effective.