You would need to bring everything up to code currently and that's going to be cost prohibitive.

That cost segregation study that saved you so much in taxes over the years?

No social or credit pull needed upfront. 

If you have a seller-financed deal, I can help you line up a DSCR loan and set up a second position behind it so you don’t have to come out of pocket much.

Use BP resources to educate yourself as much as possible.

I very much like HostTools.  

I need to update my deal profile but I moved here 2020 first buying a house hack and then slowly buying one rental a year until the last year and a half.

I recognize there are other ways I could invest this cash (including another property) but I am being mindful of levering myself out too much in the current environment where job losses are more common in my industry (tech).

Most properties are remotely managed by owners/PMs and what was suggested would be an impossible and unrealistic standard to set - much less enforce. 

You likely only made a down payment of 3-20% ....but you still get to write it off on the full value across 27.5 years.So 400k/27.5 = 14,000 ish a year of a write off where during the year you didn't need to incur an actual expense, no cash outflow.