I am a CPA and also own a single investment property and I use Wave Accounting software.  

What do I use (software, Craigslist, etc...).

Please offer real solutions, programs, software to buying inventory to flip in PA and NJ?  

I suggest you review recorded documents such as acquisition deed, old mortgages, liens and notices, etc.I use skip tracing software and licensed PI's to find owners and heirs when social media does not produce useful contact info first.

One of my custodians prefer to receive paper checks instead of ACH :))) I am looking for a software which is able to do this.

Does any one have experience with Ken Clothiers Find motivated sellers now Soft ware?

I'd actually be curious to hear whether or not your Bothell condo cash flows given the price to rent ratios aren't that favorable in those neighborhoods.Anyway, my business partner and I also work at one of your well known Seattle tech companies and we developed software that helps us automatically analyze all MLS listings in real time and send us a notification when we find a cash flow positive property.

I've got cash to invest and my goal is to retire from my 25+ career in software with at least $1M within 7 years.

Luckily, I got a job at an asset management company in Manhattan as a software developer, and I will be start working from January next year. 

First of all, software will help you automate most functions especially rent collection.