I have not yet billed them or repaired (it's flooring damage- aesthetic, but not a vital repair).

But then, it becomes vital you start to seriously separate yourself personally from the business as much as possible, because likely you're still considered the "property manager" and then tenants might consider suing the "property manager", so some people even separate their property management aspect of the business into a separate S-Corp and furthermore put individual properties in multiple LLCs. 

Is the property habitable?

As Hasan mentioned, reputation is vital in any business. 

A little bit about myself for anyone interested:I'm looking to be a buy-and-hold investor while continuing my regular job - I am looking to put money to work and would be potentially interested in doing so as part of someone else's deal; I would consider both SFR and MFR deals.I am an investor in my day job (currently private equity / buyouts, soon to become public equities) so may have some bad habits, or at least industry-specific ones, to break; I generally anticipate being relatively analytical / systematic in looking at dealsMy family held a few properties when I was growing up - I have experience personally doing refurbishing work and secondhand experience with property management activities (this will hopefully help me as contextual information, I don't anticipate taking on an active role in refurb or property management in the near future)Right now, I am trying to educate myself on the process of deal sourcing (MLS, wholesaler buyer lists, etc.) and market data sources; in particular, I would really appreciate any input on good sources for publicly available market-level data in manipulable format such as Excel or .csv as well as input from anyone who uses a systematic deal-screening approach both on their criteria and how they get reliable / quality data into a screening-friendly formatThanks for everything people have already contributed. 

You probably could find something good at Habitat or some such place. 

For rentals like a duplex you might do better with the sale if you have tenants in them when you go to sell.If the property really needs a lot of work look into getting a 203k loan since you can get a 203k on a house that you are going to live in even if it is not habitable at the time of purchase.

I do feel that networking is vital...love this site...  

My business habits kicked in so I asked if it was was a good time to talk.

Secondly, we are having a hard time getting a good quote on doing the work required to make the apartment habitable.