I think most would agree that using an email address + bank is a reasonable expectation for pretty much any transaction in 2018, much less one with such a high value.I suggest that you should seriously consider either forcing the tenant to adapt to your online management (given that you aren't asking doing anything unreasonable with the rest of your tenants which I presume you aren't) or increase their rent as you see fit to pay for whatever inconveniences you're taking on to accommodate the tenant.You may have inherited the tenant in this "state", but unless some agreement was written into the lease prior, I personally wouldn't see that to be enough reason for you to go through so much trouble.With that being said, I believe 100% in going above and beyond for my tenants and if you feel that this is makes sense for maintaining the brand of your landlord business, I say go for it and good luck!

Pros and cons - pro: that area is growing and values should continue to increase.

They say on their site that they are run by investors and that they will help with renovations that will increase the rent income for the property.

I'm a peaceful person overall and have always treated my home like my sanctuary up until things have progressively gotten to this point.At this point, I do still want them to move, but I also don't want to tolerate what's become so increasingly common, so I will continue to press on with what needs to be done. 

For example, If I'm putting $5k into 1 unit, I plan on increasing the rents by $140 to return the capital I put into the unit.

After the vacancy is filled, that would add another $1,000 / month.The property is generally in good condition with some upside for appreciation and there are some changes I was thinking about to increase the value, I.e. converting from oil to electric and have the tenants in the residential property pay their own utilities.

She was on a month-to-month lease and so the reason for serving notice was not needed, however, when confronted I told her I was looking to renovate and increase rents.This morning at 4 AM there is a leak coming from the ceiling in the apartment below hers (coincidence?

Some of the renters have been in since it was built without a rent increase.

It can be argued that making that unit legal will increase the value of the property.

You have to figure out instead what you can be doing that you are passionate about to increase your money 200k,300k,500k a year etc.I want to live for today.