Gave the other tenants a smaller 250 increase and fixed up attic space to rent as storage.

Just make sure you are saving towards those slow months during the peak months, buy a deal at the right price (don't overpay just because its a turnkey STR or you think it will make more money than projected), and look into ways to increase bookings during those slow months with some marketing and operation tweaks. 

Rents have increased significantly but so have housing prices. 

While metrics like square footage or price per square foot matter, the number of bedrooms, bathrooms, and overall location are often more critical for attracting tenants.Engaging a property manager early on can save you from costly mistakes and help you invest in properties that perform well in the rental market.

Since getting started we have learned a lot and have built quite a few systems and processes to increase efficiency and maintain consistency within our business. 

That may increase your cost or limit the coverage you can get.The Year that the following were updated (either partially or fully) would be good to know:- Heating systems- Roof- Plumbing- electricalSome companies will not write properties with systems that have not been updated.As long as you are living there, the proper policy for a 1-4 family is a "Homeowners" policy.

As rental rates increase, cash flow becomes strongly positive.  

I think it will increase down the road, but right now the town is a bit on the past.

Largely, the appreciation in housing prices is coming from both new migrants and investors coming from the East (GTA) as well as international countries (predominately from the middle east).We are also seeing drastic increases in the rental rates which in turn are pushing investment property prices up as well.

Leverage will be reduced from the max available, reserve requirements increased and, typically, you would be required to use a professional property manager.