One of the agreements tenants make when they move into a property is to pay their rent on time. If they don't do that, the property owner will need to take action. Therefore, understanding what to do about late rent, how to enforce payment, and what's legal are very important parts of having rental properties. Here's what you need to know about late rent, along with six things you can do to make sure you find good tenants and enforce timely rent payments for tenants across all your properties through legal rent collection practices.