Self showings, leasing call centers, I have a insurance companies credit department that screens the tenants and monitors there default risk throughout the year.

If you are not going to be in the area while it is being leased, I would recommend finding an experienced co-host in the area that can carefully monitor things and help keep your AirBNB rating high.You can find a lot of experienced co-hosts through AirBNB and usually only need to pay them 10% of the guest fees. 

I know it's possible to monitor usage for specific circuits using a few different device options. 

I follow them on social media etc so I can monitor their world with an occasional comment etc but don't attend their events, Birthdays etc.

You can monitor what leads do, set up listing alerts for clients for given parameters, and that's all just scratching the surface. 

Also factor in the value of sleeping well at night and avoiding the constant desire to stab your monitor with a pencil. 

In terms of the three years, since the rules in the partnership are dictated by the GPs, they are potentially making a decision on the terms of the holding period.

I just happen to keep monitoring as I cant apply for my homestead til after my deed is recorded.

(Some lenders require LPs with more than 20% equity on the deal to provide financials and sign on the loan as well).The GPs are in charge of not only shopping for debt but also raise the equity from the investors.

None of this is very expensive to install, but you need internet access to monitor so there is a recurring expense.