Sewer and water in my area is around 10k a unit.

As for the first, yes we'd be able to do that (for example, replacing a water heater which is the mechanical that's closest to the end of its useful life).

Same property listed water bill paid by landlord so how much does it cost to put individual meters for each property so cost can be moved to tenants? 

Principal Paydown: $2,441 Total Gain: $58,317 ROI: 360.32% (on $16,185 upfront investment: 3.5% down payment of $8,715 + 3% closing costs of $7,470).Year 2 Analysis Cash Flow: -$752 Home Appreciation: $6,120 Principal Paydown: $2,617 Total Gain: $7,985 ROI: 49.34%.Year 3 Analysis Cash Flow: -$375 Home Appreciation: $6,242 Principal Paydown: $2,806 Total Gain: $8,674 ROI: 53.59%.Year 4 Analysis Cash Flow: $9 Home Appreciation: $6,367 Principal Paydown: $3,009 Total Gain: $9,386 ROI: 57.99%.Based on these numbers, you’d have negative cash flow for the first three years and only break even in Year 4, assuming a 2.5% annual rent increase.Adjusted Scenario see second picture: Landlord Covers Gas and WaterIn the second scenario, I assumed the landlord would pay for gas and water at $300/month while maintaining the same 2% home appreciation rate.

Gas $10 per gallon. 

It had 22 of the 25 lots occupied but we'll be fixing it up, filling it up, billing back water and raising rent up to market.

While replacing the toilet, a burst pipe caused Cat 3 water damage that rendered large part of downstairs kitchen and upstairs bathroom unavailable and cordoned off for repairs .

For example, the iconic Malibu waterfront homes were built directly over the water, many by variance, and assumedly will not be permitted to reconstruct, certainly not with the same materials or attached architecture.

The city required the road to be extended a few feet, along with water and sewer.

For example we replaced a water heater recently.