Managed to get about 6 of them at 0% for 9-21 months.  

The whole situation seems strange since the owner let all three get this delinquent - and managed to place three non-paying tenants.If we're talking about the same one, it's price now is starting to get more attractive for a triplex in that area, even with the need to evict (of course that assumes the condition of the property itself isn't terrible).It will take time and money to get them out or get them to at least start paying again, but usually you get "deals" by agreeing to take on situations like this one.Personally, I'd advise a first time investor client against getting started with one like this and saving that for a few deals down the road.

- Manage the property ourselvesSo, a couple questions!

Our efficient project management ensured the renovations were completed on time and within budget.

Our efficient project management ensured the renovations were completed on time and within budget.

Our efficient project management ensured the renovations were completed on time and within budget.

Things to consider are self management, travel distance, property taxes, insurance, resource availability. 

Below are some systems that I utilize to manage my portfolio. 

at 7.5% interest I would suspect 11% is high unless you are an excellent manager of class C properties.

I’m also assuming you intend to manage them yourself, right?