Any resources, tips, or personal experiences would be incredibly helpful as I explore this investment opportunity!

Would definitely suggest tapping into some groups that can offer you guidance and resources as you start this business.

Here is an update : https://chicagorealtor.com/advocacy/advocacy-resources/northwest-housing-preservation-ordinance-issue-summary/The DOH has posted the forms required to be in compliance with the ordinance which means any properties not under contract by 11/9 will need to be pulled off the market and 30-60 days notice must be provided before listing.  

Our brokerage has a tremendous amount of resources that would be helpful.

Below is the months of supply for our target segment.Sales - Months of SupplySix months of supply is considered "balanced," where the number of sellers roughly equals the number of buyers.

I got helped of a good amount of start up funds to get started... which gave me insight on a target month to start. 

Here’s a good starting point:Identify Your Target Market: Mid-term rentals typically cater to groups like traveling professionals, digital nomads, or people relocating for work.

Affordable Housing Focus: Expanding programs to increase housing availability, particularly targeting urban rental affordability2.

Are there any marketing resources in the BiggerPockets community that I can also look at?

I think it also depends on the class of apartment you have as well and who is your target tenant.