This one's important. The ever-elusive security deposit. Nice to know TCI's lobbying still is paying dividends. Rules must be applied equally to all tenants, and the tenants should be told what the rules are. Try photocopying this part of the law and taping it to your front door if your landlord can't understand subtlety.
Landlords have to find a more imaginative way to get revenge.
There are times when, due to late rent, the landlord has the right to sever the lease, but the second they accept late rent, they waive that right. Don't let them hold it over your head. Read the rest. Just a small notebook, jot down every conversation, no matter how trivial. I hope you get a landlord like I have now.