The homeowner collects a NET/NET 5% yield with 1% increases each year in long-term lease by a BBB+ credit rated tenant (similar to Morgan Stanley credit).

Look into Baselane it’s designed specifically for real estate investors, You get automated rent collection, expense tracking, it makes it easier to manage properties, stay organized, and keep up with your finances. 

Collecting rent rolls, walking properties, learning who's doing the best in our sector/niche and how they're doing it, finding partners, all of these things I'm fairly good at, as I've been doing this for my recruiting agency for the past 3 years.

60k is definitely a hit and unfortunate for sure but it sounds like you have two opportunities to force appreciation up front and collect off the back end.

Is there anyone in the Denver area that knows the early stages for subdividing land or what professionals I should turn to in order to start collecting some basic info?

Quote from @Andres Lasaga: I am in the process of selling a property to the tenant I have been renting the house for 4 years.I want to outsource the promissory note collections and reportsIt would be only ONE property, for now, any recommendation of a company that can manage the collections and reporting?

I'm trying to understand how they collect data so as to develop the best comping practices.

Below is a link to the rent assistance program in Canton, Ohio; I would collect the current rent from the family and then provide them with this resource for help with future payments. 

I am desperate to get this tenant out of the property and collect all past due rent.

1) Yiu REALLY need to know what CA will  allow you to do, I don’t know, but the state may say too bad landlord, you lose. 2) Assuming your attorney (Or you if you’re able to decode the laws that relate to your situation and are willing to go to court in front of a judge against a “sick” kid.) think you have the right to collect the rent I’d give them two options.