People responded to these features and that excites me.

Obviously pools can be a big feature in warm climates but if you are buying properties I would lean toward ones without the increased risk.  

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

Use your car for collateral to obtain down payment to the seller or if you have credit cards with cash advance feature, call the credit card company and ask for a credit limit increase with the increase for advance cash.

Some include an Exam Review/Crash Course; is this crucial? 

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

I use Erentpayments.com costs $3 per transaction but has some nice features for landlords, partial payments, automatic Late fees, separate or same bank account for different houses, auto withdraw, email notifications, etc.   

#of beds, bath etc. or any special features?

Also, when you get some viewings, I started to ask prospects what they thought of the property and the price and you might be able to see if there's a better price point or feature that would make them want to go with your place.

I would probably set up criteria in your MLS on specific features that you're looking for in these multi-unit properties.