Screening is key.  

I also wanted to bounce it off other landlords as I don’t want to allow my concern over getting it filled to allow me to make any unwise decisions when screening.  

As long as you screen the Potential tenants in the application process and price the property at market rents, you shouldn’t have an issue filling a property quickly.

I like the 1% rule as a quick screen, and shoot for 1.5% properties with PITI being approximately half of the rent.  

Be aware of what you're getting into and learn to property screen tenants.

Do they do the screening?

But I make the tenants pay a flat monthly fee.

The house is over 130 years old and we would like to have it demolished and build a 3 flat.

It seems like a really great tool that not only collects rent, but can handle tenant applications and screening, track expenses, manage maintenance requests and can create a website for advertisement.

https://www.biggerpockets.com/forums/52/topics/82174-ultimate-guide-to-tenant-screening-and-renting-your-houseEdit:  Unless you are referring to more property management on a larger scale.