I want a clean slate as fast as I can and sometimes I overdue it and then have nothing left for me.  

Just continue to extend the closing until the property is cleaned out appropriately.

You name it - HVAC, floors, windows, full electric, new bath, new kitchen, new walls. 

All units are connected back to the mechanical/electrical room (mostly with copper, but we used glass in our last building) where both our equipment and fibre endpoint from the ISP are located.  

You should be able to clean and do everything you need to do and still watch the baby."  

If you plan to bid on any of the house at the auction, make sure you do a little research first to make sure that the house has a clean title.

If so, when they move out, discuss keeping some or all of it to clean the unit. 

Title is clean.

It needs all new mechanicals (HVAC, plumbing, electrical). 

Repair any structural and all electrical and mechanical.