This problem the OP has could have been avoided in the first place.10-20 min of my time is not a big deal in my opinion.

If you, or someone else (this needs to be the same person every day),  won't have the time every day to "babysit" the rehab, if you don't have extensive experience in rehab, if you don't have a large cash savings that will be tapped during rehab process (at the least enough to cover the holding costs...and then some)...remember, there will be no income coming in during the very long rehab process, I would avoid any long term involvement that is based on a vision of gold. 

When you are 22 and already looking to avoid the rat race in favor of real estate, that can be a disappointing endeavor.

Either way you get rid of a problem and avoid a vacancy and/or possible eviction ban. 

Pitfalls to avoid or at least be aware of? 

Avoid houses with tenants in place.

.- Yeah, we are trying to avoid headaches rather than create them. - Good question about the dual meter: it is, however, I am going to confirm today if the adjacent property is a duplex (which I am pretty sure it is) and if that is a separate meter for the second unit. 

Cash purchases should be avoided, you will loose credibility with your partner.A cash withdrawal from the company account might be broken out for small supply purchases, for example, or copying a key, but each purchase must be verified with the receipt; receipts will match the total cash withdrawal.  

The conversation with the realtor let me know what neighborhoods I should focus on and help me avoid buying in a bad part of town. 

Many associations offer a MLS only option so you might be able to avoid the Sentry fees