I was under the impression vrbo and airbnb would send all the guest information including email and phone number so that the yourporter software can send autmated messages to guests. what am I doing wrong here?

What data analytics software do you use and why?

You'll be money ahead to use a software/calculator built for commercial underwriting, even if you do have to drop a bit of cash on it. 

Or, if you are a real DIY, look for accounting software.

Any software?

Can you create a PnL via software accounting??

Online payment software - find an online software that's inexpensive so a tenant can pay me online.

(We only did interior upgrades on one unit that moved out during the deal making; all rents have been increased)  We dropped our management company and do our own management in house using Appfolio software and their call center service for maintenance calls.  

We are only able to find this small population of properties because of the software we developed.

JOSEPH LORENZO if you have more than a few properties, Quickbooks (with class tracking) is the software of choice.