For example, do you need the software to collect tenant payments or are you looking for something to track depreciation expenses?

If you sold the 28 houses for 20k each on payments, that equals 560,000 in accounts receivables collected over a 5 year period.

Since you don't have an interest in calls/trainings, I'd look for companies with favorable splits.Berkshire Hathaway and Winzone are a couple of companies that come to mind.Also, my brokerage operates in every state and does not collect commissions on your personal deals. 

I have a handful of my employees tried to make false injury claims, but they could never win, since my safety program has an embedded clause that they had not sustained injury during last weeks work, and when it is time for me to do a closeout on the project, they had to sign that the job was done and completed thereby no more work is left for them, this prevents them from collecting unemployment and making false injury claims.Anyway, I won't tell you what you must do to constitute right path, but I will give a scenario where it could go south, what you do with the thought is up to you.

Then I became the guy collecting the check long before the term house hack was coined.

I would say, that the class of the unit and tenant profile would determine the approach to this additional security by collecting more money.

I guess I'll start by sharing a bit of myself and how I got here.A few years ago, I saw a listing for a 4 plex in a nice part of a city in the CA Bay Area and thought, that would be so great if I could live there and collect rent to help pay off the mortgage (it was even listed for a reasonable price, though I'm sure there was a bidding war for the final sales price).

In Delaware, they are considered in holdover and you can collect double the daily rent. 

Some real estate investments grow a little slower and even though there is monthly rents collected, there is deferred maintenance costs and management requirements depending on what type of properties.

Or you can do a "permission to show" to represent you investors, and still collect a commission.