Many places are putting 30 day lease minimums into place unless you have a short term rental license where you report to them (revenues are usually taxed 10-15%, on Airbnb this is paid by the booking party).

You don't want to be in that boat.My city just hired a 3rd party company to enforce the rules.

For the last several months I've been researching potential note purchases from the third party websites. 

So they simply amended the end date on the lease and initialed( both parties)to make the end date end in a month.

With the new hospital, casino, expansion of grantline road, good schools and various other infrastructure building it's ripe for appreciation.

This is usually the biggest concern landlords have when leasing to operators trying to arbitrage and they're afraid of people partying and damaging their property.

On this second part, I have done a variety of terms from just offering payments with no interest to adding market interest BUT paying it only once per year on the outstanding balance.

There are so many different ways to make a good living without going down the path of trying to find people to seller finance or doing subleasing, both investment strategies that are full of snakes and usually involve one party taking advantage of another if I am going to be completely honest. 

I'm seeing them at thanksgiving party and I thought I'd use that chance to get to know them.

If you goal is to focus on building your portfolio and you are just trying to offload the burden of property management, I would get referrals from local investors and hire third party property manager that already has the systems in place.