I'm happy to provide instructions, walkthroughs, and adjustments for specific needs. 

Look out for 2 bedroom houses that might have a “hidden bedroom” or bonus room, too.

Immediately after closing, you/your company/your PM would send/post a notice confirming the new management effective date, with additional contact info, such as a separate maintenance or accounting contact, and further instructions on where, how, and to whom, rent is to be paid.Beyond that, you are limited to the existing terms of their written Rental Agreements until the stated term ends.

They instructed me exactly how to open the lease, and as I was sitting there with the CSR, I got an email from the new tenant, “WTF, why are you changing the lease I just signed?”.

Like all areas of real estate there are hidden costs which can eat into profits or cause losses.

Of course, these instructions only matter when there is someone reading your email.

*Can anyone recommend a really good reference book that outlines ongoing house maintenance to-do, a schedule for frequency, and DIY instructions?

They all seem to have the same lists and resources and instructions too.

Saying they overloaded it points a blame emotion on the tenant, would be easier to say: in our move in instructions we wrote- don't wash rugs, blankets, heavy items.

The seller is on the same page, nothing is being hidden.