I can't tell you of any killer software for real estate investors, but starting out I would suggest getting Microsoft Office (around $10/month if you choose) that would have all the software you'd need starting out.

.- Most of the security breaches came from Microsoft related products especially Internet Explorer.- Most all credit card theft comes from making purchases in person, not on the internet.Overall this is a good intro book into hacking and cyber crimes.

A quick google search will reveal dozens.I use Microsoft word, excel, and google calendar.

These are the accepted definitions of these terms.If you're going to deviate and present false information, tbh you may as well open Microsoft Word and go all the way, skipping any middle persons in the process...In any case, you mentioned a real estate agent, which means it's an MLS property, which means the standards and norms apply.

People even steal Microsoft product.

I use Microsoft exchange so all my email, contacts, calendar etc are accessible in the cloud and on any device. 

I can sign purchase offers through Docusign, track rent through Cozy, take photos of vacant units, list units on Zillow, execute digital lease signing, take calls and texts through Google voice, scan documents, track expenses (Microsoft cloud), search for properties, listen to BP podcasts and the list goes on.I can run my entire business through my iPhone.

The idea is to get the contract and send what it says and how it is setup for what works for your business strategy on how to acquire said property from a motivated seller, then scan the contract into your computer and use an editing program like Microsoft word or paint them modify and update it with your business and company information then print it out and take it to an attorney or lawyer and have them verify it and he honest as to where you got the contract for your own use then, go get those deals done! 

In addition to the Amazon facility, Microsoft is to open a "Smart Cities" hub in Syracuse, the 3rd in the nation.

But it's also bad because it will limit your scope of what's possible.Bill Gates didn't build Microsoft by "thinking small."