I'm based in Windsor, Ontario, Canada, and I'm new to real estate investment.

If the score does not seem to be backed up by enough credit history to be reliable, I will make a judgement about the tenant's level of responsibility based on their answers.

Quote from @Sean O'Keefe: Quote from @Tom Gorrell: We have 3 rentals in CA and one in Kentucky (total value about 2.5 M)some W2 incomesome pension incomesome syndication income and some from a business (s corp) Based on what you say, it feels like $3k - $4k but would need more info on how frequently you meet with CPA outside of Jan - Apr when you are filing and if this includes tax strategy. 

But she takes excellent care of them (even put in a small concrete pool for them to play in during the summer:-).

Absolutely, @Cynthia Lee happy to refer you to either of the Portland based attorneys I have experience working with.

I own a single-family home right outside the USMC Camp Pendleton base, and I’m looking to explore the mid-term rental niche.

The seller will also have to sign documents that are required and it will hold them liable for debts since they are on title.Best way to set that up is run the numbers and create a partnership based on the equity of the land and your cash injection and sweat equity.

Buying & selling it as land, no development.Perhaps what I have covers all the bases I am looking for. 

You can only play games for so long.Chances are your next door neighbor is an IRS agent and turns you in when your tenants blocks their drive or some other random event disturbing your IRS neighbor.ADU catches fire and your insurance won't cover you, because it was an illegal and unpermitted structure.The city inspector told the last guy not to build or rent it, and is now pissed and wants to make an example of you and just red tags the whole property and no one can occupy for the next 1-2-3 years while you wait for a hearing.Then when you get the hearing, "staff" recommends you tear the whole structure down, and if you still want an ADU, you can apply for a permit and rebuild it.Your tenant quits paying rent and won't move out and you can't evict them, because there is no valid lease and they're just your "roommate".Probably a dozen other bad things can happen to you when you do stuff like this. 

Based on the quality of this particular home, my rent estimate may be low.Note: you have to consider other factors.