Hi @Jinxiang XuFoundation repair is common but no pipeline replacement, it depends on the age of the property, but in your situation it could be due to the foundation work done.Service prices are in all ranges.

Exterior looks somewhat aged. 

There is also a distinction to make here as units can be legal non-conforming aka grandfathered in, in which case the above scenario would be ok to consider rental income and value on all three units. 

You start by mentioning your age... you'd need everything to go just right for the rest of your life to make, best case, $400 or less additional each month net cash flow. 

Four distinct rate seasons. 

Many of us on here wish we were thinking about real estate at that age.

Due to it's age I'm not sure if it can actually be moved.

I'm hoping to add this as a start to my portfolio, rent and eventually sell once the wife, and I are closer to retirement age.

There is so much to learn between the ages of 18-22. 

The valuation and market value of a multi family property differs from a single family and you want someone that understands the distinctions if you go that route.