Advice - Considering selling or renting currenlty owned multiplex

We have a 6plex in a partnership that we have had for about 1 year. My partner was doing repairs and property managing but is now wanting out of the partnership due to another opportunity. Currently I am trying to sell it but due to its area I am finding it very difficult to do so at a price that I will not lose a significant amount of money. The thing is that it will cashflow and be considered a 20+ Cap. It is about 1.5 hours away from me and very hard to deal with so far away and is the main reason I would prefer to sell it.

Here is my main questions. It currently has 2/6 rented and I have 2 other renters wanting to move in making it 4/6 rented. The issue entails in that the apartments need work IMO. I dont necessarily want to be a slumlord though. 

Will have 4 of 6 rented increase my chances of selling even in poor condition. Yes, the tenants know the condition. Or will having them occupied decrease the chances of selling it.

I am looking for some advice from experienced people that have dealt with similar situations. If push comes to shove and my loses would be too high to sell I may have to invest more in order to get the property to somewhat of a respectable point. I very much appreciate any and all experienced advice.

As a side note If I filled each apartment this thing would still be a 20 Cap or higher which is a great deal. Just far away.