Expenses and Maintenance features are also very good IMO. 

As you progress, maintaining a clear line of communication with your team, especially your property manager, will allow you to stay ahead of maintenance issues and tenant needs, keeping your operations smooth and your tenants happy.If you haven't done so already, consider outlining your goals and investment criteria with a property manager early on.

@Zach Howard some copy & paste advice below:)-------------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

@Eric Coats, to answer your specific questions, estimating expenses are pretty simple. 

I see so many new investors that lose thousands, sometimes tens of thousands, every year because they make simple mistakes.

Maintenance storage?

Since I work pretty hard at my day job and don’t have much renovation experience, I wanted something simple—a rental I could put a tenant in and at least break even.

So bye-bye all the Brrr's and Multi's and what not, we need SIMPLE, right, a good simple SOLID base-hit, right. 

Think of yourself of an asset manager, not a maintenance provider or lease-up specialist (but do those well too).3.

Again, they try to leverage the majority the landlord is getting, so they don't have to pay their portion.6) We get the most maintenance requests from S8 tenants.