They require tax returns, voter registration, car registration, driver license, and utility bills in the app to prove it's your primary.

My goal is to stabilize, refinance within 3-5 years, and offer strong returns to lenders.Your point about targeting SDIRA investors and high earners is interesting—how do you typically find and connect with these types of lenders?

I also accept checks but generally my tenants don’t mail these until the 3rd or 4th which typically means I don’t receive them until the 7th-8th.

While the guarantee of income sounds great, it's only a percentage of the rent, typically up to 70% and the tenant has to pay the remainder.

Just approach everyone with your business potential and they’ll typically help you out.

In Canada you can typically prepay whenever you wish and, provided you do not exceed the annual "prepayment limit" under the conditions of the note, you will suffer no penalty.

In that case I write off the lost rent as cost of doing business, but I prefer that to the expense and hassle of an eviction, which typically ends up costing us more and takes longer, even though Milwaukee is still pretty landlord-friendly.I have also done cash for keys, but typically very conditional. 

Typically hard money lenders will lend a maximum of 70% of the ARV so if you are below you will have more flexibility on the initial loan and the refinance (better terms or higher cash out) and of course more profit if you sell

Typical utility bills (which we include) are $100-300/month.  

The dated cabins typically need more help than say brand new construction which now are coming with pools and other amenities built in.