You can always build in a small extra fee for a realtor if its an off market property.

When you add up legal fees, lease fees, loss of rent, etc. it can add up.

Confirm that the warranty applies to the type of property you own and consider whether the annual cost and service call fees make sense compared to just handling repairs yourself or using your own trusted contractors.

I understand that rents will go up over time and my mortgage payment will pay down the principal, but it seems like investing the $1.43mil into rental properties and/or a low fee US stock market fund may work out better for me. 

.- S8 tenants don['t want to pay application fees- S8 tenants cry broke about paying security deposits- S8 tenants in the program for 10+ years claim ignoreance on filling out their paperwork because they've learned a desperate landlord will do it for them.If you want a S8 tenant, you MUST advertise on www.AffordableHousing.com

Keeping pets requires a one-time nonrefundable pet fee of $200 (per pet) as well as an additional $20 monthly rent for each approved pet.

@John BerjIf cash flow is a top priority, factor in HOA fees (common with new builds) and confirm rent comps to ensure the numbers work.

You need to find people who love Costa Rica and would love to own a property there but are hesitant to buy a property on their own where they will need to manage it, and take care of it, and pay for the maintenance and any other fees associated with it.  

This is probably a question for your personal CPA or if you don't have one, paying a consultation fee to a Real Estate centered CPA would be a good investment. 

@Paul Shannon Great job asking about the fee structure.