Every system you try will have flaws, or you may salivate over a feature that appears in other software.Some familiar names are mentioned frequently: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend conducting thorough research on each app online to understand their offerings, pricing, etc.

First and foremost, is the property you're going to use the money to buy a good investment. 

That said, it has barriers to completion.The first and foremost was mentioned.

Look for properties with features like separate utilities and layouts that appeal to tenants.

Max Max,BiggerPockets recently had me on the podcast featuring Turnkey real estate on BiggerPockets Episode #1049 . 

One of its key features is the ability to pull comps quickly while ensuring the data is updated as fast as possible.

I have a facebook group for wholesalers and we actually get free PropStream training sessions exclusively for our group where someone from PropStream actually shows you how to use all these features.

Since owning them, we have installed features to store over 5,000,000 gallons of water in the soil that did not exist before. 

It can feel like feature overload.

First and foremost, buying more than one property at tax auction is advisable to help you unload those that may have liability issues.