One such app that is meant for the task management and is better at organizing, prioritizing, scheduling and managing the same with high level of effectiveness is the cloud based task management tools from Replicon.

And if they hear from you as well as your tenant, the cops might begin to see it as more of a neighborhood safety issue and less of a "two guys who don't get along" issue.

Anyone in a position of authority who ignores a safety concern and someone is injured will probably be sued personally. 

Most every seasoned investor gives this advice: buy with a good margin of safety in case prices drop or you need to sell quickly.

A duplex gives you limited drama in terms of tenant management but a safety net in terms of liability.

They aren't anything to make you shy away from it, more protection for you actually, addressing the safety, security, and soundness of the property.

Tell the existing tenant that you will personally show the unit and guarantee the safety of their personal items.

But, if you buy properties with equity in them (that is, you search hard enough to find properties at a discount to market value when you are buying) then you should have a margin of safety to protect against a slight down turn.For what it's worth, I think you are taking all the right steps to mitigate your risks by asking the BP community before you buy.  

Regarding 1031 Exchange and syndications, if you are an accredited investor, you can buy into institutional grade $50-125M projects with as little as $100,000 and diversify for some added safety.

., by failing to indicate whether the individual was prosecuted, convicted, or acquitted),.... the fact of an arrest is not a reliable basis upon which to assess the potential risk to resident safety or property posed by a particular individual.