If you plan to live there for an extended period of time and it would lower your current cost of living that would be an improvement, but this would be a negative cashflow investment and I'd personally pass.

Raising rents, remodeling units as they become vacant, improving common and exterior areas, better maintenance and management than prior ownership provided.

While improving that take on another 2-4 unit you can BRRRR.

Also, look into Green Bonds or Green loans if you are adding EV charging or solar etc. as Banks like to access that source of money if you're modernizing a building to be Energy efficient or leed compliant.

Private sewer improvements can easily cost $500,000 or more. 

Is the project a Class B value-add with minor improvements to reach B+ /A?

Biggest value adds, from what he said, were increasing square footage, and then improving the kitchen and bathrooms. 

They tend to be pro-active towards community development and local housing and making improvements to buildings that will help improve neighborhoods.

Don’t discount the expense of improving it with septic, water, and power.

Since I've only had this property a short period of time, should I claim depreciation to improve the cash flow after tax or refrain from doing it?