Include dates, tasks (e.g., guest communication, cleaning, or repairs), and hours worked.

There is a very big difference in my point of view hearing from someone who knows someone first hand vs. someone who just goes and does some internet research. 

You have to know your state landlord-tenant laws; they are on the internet:"In New Jersey, a landlord may need to give a 30-day notice to pay rent before eviction if the tenant has a history of late payments and the landlord accepts them.

Quote from @Tod DuBois: Looks like everyone is using some software tools for various tasks, I'd not heard of most of them.

Find Brandon Turner anywhere on the internet for information on it.  

You may have to do this several times for all the different tasks being done.The only labor cost not covered by this type of online inquiry is drive time from the businessto the property, to the store & back for supplies and then back to the business address.

The task to do that may be "wholesaling."

It’s not the most simple task unfortunately - definitely requires some technical skill.

From an internet search"Unrelated Debt-Financed Income (UDFI) is a tax that applies to an IRA when it uses debt"

A formal business built on this seems overkill as you’re essentially paying someone for a service that already has standard model.If you and the parnter have distinct business tasks/abilities (i.e. not what you would hire an agent or contractor for), such as off-market lead generation, that’s a different discussion.