If you tell someone too early you aren't renewing their lease, especially one who is aggressive, could lead you to issues.

They market and sell the lead to an end user. 

Quote from @Dan Shallcross: Your PM should know the answer and be leading the way aggressively.

As a starting point: -If they work full time and make $700k a year -Don't want to or can't spend time self managing a short-term rental -Don't have a spouse who wants to take the lead on managing the rentals They are likely not going to directly reduce their taxable income with real estate year-to-year. 

This leads to home prices increasing at a fast pace so you're definitely on the right track of which markets to invest in.

Napoleon Hill's masterpiece takes a dive into the power of the mind and the principles that lead to success.

Knowing what you are capable of and/or having proper resources can lead to great deals in any market.   

This dealflow is then supplemented with deals from the broker channel.The broker channel will get leads in the door quickly, but they are usually of questionable quality and loyalty.

It’s risky but can lead to significant returns!

They will have additional costs for mailing & online campaigns to get leads.