As a renter, you're at the mercy of your landlord. One new renter found out the hard way that you have to be careful who you trust with your personal information… His terrible landlord found out that he and his wife were trying to be frugal while saving up for a home in the 1990s. But when the landlord discovered this guy's high salary, he suddenly decided to charge the OP and his wife a massive increase in rent, boosting their monthly payments by $500! As the OP, u/RockyMoose, writes to r/ProR…