I'm currently trying to push some freeze damage on the bank.

I tried to download the calculator but my computer kept freezing up when I tried to submit the contact form.

I'm also protecting from my buildings freezing up and the pipes bursting due to the fuel being allowed to run out, intentionally or otherwise.Not sure about your local electricity provider but mine has a "landlord program".

Of course by that time our freezing spell was over with. 

I have an exterior wall that needs to be insulated due to pipes that are constantly freezing.

I do my best to keep an eye on them as much as possible.Also, I still do some hands on, when we had our Houston freeze all the plumbers jacked up their prices and were very busy, so I had to do some plumbing (pic attached) I had to replace all the PVC in the pic.

its called a cash out refi many lenders do them.. talk with some good mortgage brokers if you can't get anywhere with the bank.also be advised and like reading the small print on this one Helocs can and do get called.... and with little to no notice.. for those reasons Heloc's should not be counted on for business ventures unless you have other capital if the bank decides one day to freeze your helocI have bailed out more than a few investors who got half way through a rehab and got their heloc froze and called.. puts them in a real bind.

Not sure why, but the site keeps freezing up on me when I use IE 11 and I get the following error message: "biggerpockets.com is not responding due to a long-running script." 

The properties have typically been vacant for at least a year and here in PA, that means that they were through the winter without heat and have possible freeze damage. 

I do not know if there is any long term maintenance plan other than keeping an eye out for corrosion, leaks and potential for pipes freezing.