Again, the BiggerPockets store has some books for this or you can learn by watching podcasts, reading blogs, and interacting on the forum.

Here's a great article I found: https://www.fastexpert.com/blog/is-chicago-a-good-place-to-i...

Here's a blog post about it.

You might want to read some of my posts on my BP personal blog.  

Scroll down the page and look for cities above the line for good performance.https://www.airdna.co/blog/best-places-to-buy-a-va...

Here is a blog post from the Founder of my company that may speak to you.

As a Pro Members of BiggerPockets, you get both Stessa and RentRedi are free....So I would definitely encourage you to become a Pro Member for these perks and more. https://www.biggerpockets.com/blog/pro-partners

What I would suggest is signing up for a Pro Membership to BiggerPockets so that you can use both softwares for free. https://www.biggerpockets.com/blog/pro-partners

Here's an article explaining some of the options you may run into: https://streeteasy.com/blog/nyc-real-estate-agent-splits-com...

As mentioned by another contributor, you really should read everything posted on Travis' blog.