Definitely agree on the attention grabber - maybe something link "Your Apartment, Your Wallet, Our Planet: Smart Choices for a Better Life"
I say wallet because when we're talking about apartment dwellers I'm thinking about the bell curve of inhabitants and their socio-economic condition (I know where I was when I lived in them). Saving the planet didn't resonate the same way saving time and money did.
Maybe list of the top 10 (clickbait) most impactful micro-changes a person could make, with an appeal to share their experiences in forum where others are doing so (shameless permies.com/forum plug), and then of course
"From apartment to Farming Homestead: How I SKIP'd my next apartment and home rentals and entered Home Ownership by..." [Food Prep Badge bb's, Greywater adapted for Apt. dwellers bb, Natural medicine bb's, Plumbing bb's, etc.]