You lose a few percent in bitcoin fees, but you can essentially take out unlimited amounts of money in cryptocurrency. 

If you have a job and just one income producing rental property then you have a safety net. 

There are minimal health & safety concerns at this point (which I can deal with quickly) but I'm trying to strategize the best approach to rehabbing this property.Thanks!

You can essentially finance the whole deal if it's good enough for them.

Any safety issues?

If you see a property that interests you, drive past it during the day and also early evening to get a feel for safety, parking availability and how many people are going to and from work each day.

There was also a man in Texas that purchased a dam that surrounded his property,  (you have probably seen it being in your line of work), I thought that was interesting, but of course not very practical on a routine basis, but I wondered if something of that nature could be applied in a similar fashion to hurricane shutters.... i.e. you install hurricane shutters and your premium goes way down and they essentially pay for themselves in a couple of years.

Do you have any methods to determine somewhat of a safety-net that would prevent this for happening? 

I'd be concerned for my sister's safety given the described lack of regarding the side door but on the flipside Upstate NY is quite arctic in the winter; does her lease say anything about her role in preventing a pipe freeze in her unit?

From my understanding this is essentially the capacity which a lead investor holds.