From what I've been told, massive action produces massive results.

Something like top producer or anything like that so that you can automate the process.....

But now these properties aren't producing the cash like they used to because they never updated them and many tenants now a days watch too much HGTV to consider them.

As @Brandon Turner mentioned the podcasts are amazing, and it will also give you a flavor to the many different methods you can invest in, for example this week @Ankit Duggal had an INCREDIBLE podcast on RE tax lien investing - was eye opening (at least it was for me).

Depending on how the properties are producing when you refi, you maybe able to get a commercial loan.I suggest that you don't let the seller financing get in the way of how you would analyze the other factors in the deal.

Have you started a direct mail campaign that is producing deals?

The spelling corrections you made/assume are correct.Millage Rate is applied to Taxable Value to produce the amount of taxes due.Taxable Value can differ from Assessed Value based on caps applied to value increases.

I think unless you are in an incredibly hot market offering a home for lower then the competition this many hurdles will lead to longer vacancy.I am not opposed to hurdles to screen out the unmotivated ones but this is a large amount of hoops that will definitely lead to decreased demand.It is a trade off.Your life is easier & you have much more timeButYour rentals will be empty longer.

It could be a good deal, but the age, work and distance would make me hesitant to acquire this property as my first deal.I would probably look for something newer that would produce similar income as one unit. 

The fruits of this labor would produce options.