My tenant just called me and informed me that the floors were damaged in bedrooms sent me pictures of the floor rising up, never told me that it was due to water damage, the issue started due to broken tub drain pipe which occurred after a plumber snaked the line.

Because it lets you keep a property out of harms way with no leverage but also lets you take advantage of leverage on the other property.  

Then, evaluate a deal to see if it is "worth it".There have been many success stories that have occurred in NJ and the New England area.

An emergency is something that could harm someone's health or cause damage to the property if not dealt with immediately.

My friend told me the tenant got really nervous when the landlord wanted to keep inspecting the bedrooms- the landlord suspected some sort of illegal activity was occuring. 

With the turnover from military families occurring every 2-3 years it is difficult to determine what they are looking for in that short amount of time.

To try to help with your question - here are some points I would suggest:Transition time - the transition from previous owner to new owner occurs at closing not before so if you were my client ( I'm a Realtor) I would advise that you do your best to ensure that any disruption caused to the tenants during the transaction period be kept to a minimum - your Realtor can assist with this - request that contractors that need to work on the transaction - inspectors, termite companies, roofers etc. visit at the same time. 

If your messaging is simple and you can associate it with something that is common and likely to occur with your target, then you'll likely have success through it.  

I had this instance occur with a washing machine.

Make sure you have confirmed all holding costs yourself and plug in an increase in both city & county property taxes that will occur most likely the year after you close on your purchase.