If I bought something for a specific reason on one of the units I put those materials toward that one where possible even if it could be argued that it was a general expense (like buying 5 gallons of paint for one project and using 2 gallons left over to paint a single room later at another property). 

Lots of old properties where I'm at, so it isn't unusual to expect $10k+ of capex out of the gate for water heaters, putting in central air possibly, and other old property issues.

Ran into some unexpected issues with having to run new power for the stove as well as having to run new water lines for the bathroom and kitchen.

Close proximity to another source of plumbing - either side by side, or stacked one on top of the other - means easier access to existing water and drain/vent lines, which will almost always be advantageous for your project budget.  

The inspection revealed moisture issues in the basement, a fastener issue on the deck, and reverse polarity of some of the outlets.We are pending lead, mold, and chimney inspections.The HVAC, furnace, and water heater are functional but "beyond their lifespan."

This step must be done carefully to avoid further damage.Structural Repairs: Address any structural damage first, including the roof, walls, and foundation.Systems Repair: Repair or replace electrical, plumbing, and HVAC systems as needed.Interior Restoration: Once the structural and system repairs are complete, focus on restoring the interior, including insulation, drywall, flooring, and fixtures.Safety and Health Concerns:Air Quality: Ensure proper ventilation and air quality during and after the restoration process to remove smoke odors and contaminants.Mold Remediation: Check for and address any mold growth, which can be a common issue in fire-damaged properties due to water used in firefighting.Final Inspections:City Inspections: Coordinate with the city for final inspections to ensure that the property is safe and habitable.Fire Department Clearance: Obtain clearance from the Fire Department confirming that the property is safe to occupy.I hope this helps, best of luck!

Subdividing the lot would add an additional $20k in expense as I would need to tap city water/sewer to the new duplex (previously the detached garage apartment).

The weather is very hot and water is expensive down here in Texas.

I tried to help but don't want anyone to feel pressured, so I consider the matter closed.well U can lead a horse to water but cant make them drink.. keep in mind many of these folks were or are beginners .. so they may feel very intimidated to do anything but a post on BP.. and or are worried that somehow they will get sued by this guy..

Can you make the payments on the mortgages while renting, even though you are under water?