The one that is best for you is the one you can use consistently.

. :) That's where you should invest for stability and consistency.

Now I know list source is one, but what are some of the other platforms I can obtain lists through.

Anyone using online platforms for property identification?

., TV commercials, radio ads, do pay per click/adwords, facebook, Linkedin, Youtube, and other forms of online advertising and boosted/promoted social media postings.Bottom line is consistency.

Does anyone have any input on this software or any recommendations or a better platform??

I would strongly encourage you to collect the rent through a 3rd party online platform or via ACH direct deposit on a go forward basis.

I just preferred to do marketing from every platform even DMM. 

The list will consist of out of town owners from property tax records and focus on SFH, small multi-family and small commercial properties.I have found a company that will print my brochures, put them in envelopes, print the addresses and mail them for about $1 a mailer.

Absolutely not.And I have explained this countless of times before.You get a website NOW.DMM D4D Banditsigns are HORRIBLE marketing platforms on their own.Why do "marketers" think the ONLY thing a website is good for is SEO?