The reason not to upgrade, is that you won't get that much more income for the cost of the upgrades.  

Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

Account for all costs, including closing fees, holding costs, and repairs.

Do you want this thing to be the tipping point for them to leave and you have turnover costs and a vacant unit? 

Perhaps if your partner was a general contractor or handyman type there may be some merit there to reduce costs / increase profitability.If your partner enjoys deal sourcing, a better move might be for him to become an agent - so he could legally collect commissions from finding deals and managing properties for multiple people. 

After pointing this out, I would have expected the cost to be eaten by them.

The guy on Youtube that boasts about buying properties with no money out of his pocket and using other people's money from his "community" to pay for closing and carrying costs, said in a video in June that he had 10 Due on Sale called in AZ alone from Jan 2024 to May 2024.

I'm going to reiterate what's already been mentioned above, but I'm going to actually give you examples of why it's relevant to you to find a U.S. tax professional.1 - You're going to need to file U.S. taxes once you have property down here, there's federal filings, state filings, and sometimes local filings too2 - Tons of tax treaties between the U.S. and Canada that are easy to miss and can cost you a lot of money (important one with rentals - effectively connected income - if the professional you talk to doesn't know what this is, run away)3 - The amount of days you spend in the U.S. needs to be tracked and if you go over a threshold, all of your worldwide income could be taxable by the U.S.4 - Selling real property means up to 15% of your sales proceeds might not be available to you for years (FIRPTA)5 - Lots of nuance at the state and local levels, which both want to take as much money from you as possibleMain takeaway here is that you should find a U.S. based tax person.

Target neighborhoods like Brewerytown, Kensington, and Point Breeze, where demand and ARV potential are currently strong.Your skills in renovations will give you a significant edge in controlling costs and boosting returns.

If the RV is not permanently affixed and retains mobility, it is considered personal property and depreciated over 5 years under the Modified Accelerated Cost Recovery System (MACRS).