So, I went through the routine.

A day later the sellers agent calls me and now the 2nd has returned to their original request for 19k pushing this into an uncomfortable price zone for me again.

That is, don't bring them last minute deals you know they'll be uncomfortable with and then walk away upset when they say no.

I would do a routine inspection and if there is a dog let the tenants know they are in violation of the lease.

I have always used document preparer services like legal zoom to quickly form LLC's, of course if you plan on making them so routine (ie for each property) I would research lowest cost options as you could simply form out the work the same way a document preparation service does.

"the corporate veil is routinely pierced") on here, then I am skeptical.

If you're uncomfortable answering that, that is fine.

The 24 hour notice is for routine access to the unit for maintenance, not emergency reasons.And you missed the point of the OP's situation a bit, because the owner has a duplex with upstairs and downstairs.

Have you applied other techniques to support your subsequent success in real estate such as meditation, yoga, exercise routine, improved diet, etc?

I just fit what I could do into my daily routines and did them consistently.