My new Quad: Help me not break my bank

[Yuriy Tymoshenko]

Hello, Board! I had made another leap of faith and bought Quad of 4 1/1 Apartments. I will use this thread to get some advises from the knowledgable public here.

This place is in pretty rough shape, but I am hoping to fit my repairs in my operating budget. 

In each unit, I am planning on replacing carpet in the living room and adjacent kitchen with some decent looking tile. This will extend the life of the floor and will give an apartment a fresh look that will attract tenants. What does everyone think?

I am also looking for advice about how can I improve a curb appeal and facade of the building?