It has appreciated quite nicely, but cashflow has been bad and the most recent repairs drained everything I had in the bank from the previous 8 years. 

The swimming pool liner leaked so the majority of the water drained out.

I won't install french drains or interior curtain drains. 

However, my current job is very accommodating for a side hustle, but is draining enough to be a daily spark of motivation towards quitting!

While pre-sold units are nice, taking on a customer is a god awful drain on your time and patience.  

Most courses are specifically designed to drain your pocket to the greatest degree possible and then upsell you.

A sump pump and/or perimeter drain system sounds like it makes sense.

drain down the water and put rv antifreeze in all the traps and drains 

We have three decades of our own operating data in several different markets to build projected NOI for this property,But we have not done a distressed physical rehab before.I have been given a price for the complex, and a price for the rehab, and a financing package from the bank which has taken the complex from its owner that includes funding for the rehab costs, and good LTV.The complex is operational but is over 40% vacant, and is the classic story of an owner who gradually drained their property, eventually lacking the money to do unit turns.What I would like to do is bring in an independent team to walk the property unit by unit and build out a detailed rehab budget - a team without the conflict of interest of being hired by the bank who owns the property, or being brought in by my existing management firm.Should I hire tradesmen with specific skills (electrical, drywall, plumbing, roofing, etc.) and pay them each a fee to walk the property?

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀Those people rather pour concrete down the drain than sell to you.