Food for thought for you: since you practice tax accounting, consider "pushing" your concentration towards RE investors.

It is perfectly OK to learn the business one step at a time and this one has a decent ROI and no repairs needed so you can concentrate on building your landlording skills.  

This is automatically done by a control valve.Post your water analysis with the current iron concentration, pH, hardness..etc, and we can discuss what you need.

At your age I would concentrate on positive cash flow as opposed to equity growth.

The government subsidizes the rent to the landlord and the tenant pays the difference.It accomplishes the same goal of providing affordable housing, but it disburses the families, which doesn't lead to concentrations of poverty in housing projects.

Concentrate on eliminating your consumer debt and forget about paying down the house.

@Ron Gallagher is right about the concentration of public housing.

I would concentrate on one strategy at a time.  

Plus they do add value, if they have the right team and have to work to a budget and draw schedule.That way I can concentrate on business matters and not construction snafoo's.

It may be that I need to concentrate on learning many of the neighborhoods so I can recognize a deal more quickly and make offers faster.