How to improve dumps in a nice neighborhood?

[PM Ahern]

Hello, brand new to Bigger Pockets...

Just inherited the responsibility of managing nine properties in a nice neighborhood. Excited about it! However, they're not in the best shape because they haven't been updated much over the years. The property taxes are eating into the bottom line of rent income. What kind of updates can I inexpensively make to the properties in order to raise the rent and increase my margins?

-PM