They said I won't affect my assets by resetting the software etc.

Hemlane is a property management software.

You'll need good contact info for them to be able to collect, and ideally the new address for the tenant however which if you don't have can probably be found easily with some online sleuthing/ contacting their employer, skip tracing software, etc. 

I read about it on Reddit and have had it for a year - it does everything more expensive softwares do but for a much lower price. 

If you're really going after probate leads, just use whatever real estate dialers and software there is out there to get these lists for you and just call them.

The processor keeps making mistakes with the wire with spelling errors etc and now they say the two software systems Bank and investment company cannot integrate.  

Yes, having tenants pay ACH via a Tenant Portal software is best, but not all will cooperate and some will play games that result in NSF charges.We allow tenants to deposit cash/check/money order directly at our bank into our account.Many Class C & D tenants have challenges adapting to unfamiliar ways to pay and is often not worth the hassle (and possible evictions) to get them to change:(

Quote from @Tessa Tsui: Software is a common question on BiggerPockets.

There are lots of paid software programs that do this for you as well. 

Have agreed on terms on a hard money loan to an investor I know well. I can have them just setup an ACH for the monthly payments, etc...but I feel like this would be easier with some automation, and there just must be...