I like the idea of having a partner but that, like you said, would be something to develop over time.

For the better part of two decades I've been involved in real estate in some capacity including but not limited to: mortgage & real estate broker, developer, project manager, STR owner/operator/manager, international investor and beyond. 

It explains the team that you should develop to have a strong foundation under you while investing remotely.https://www.biggerpockets.com/blog/core-four-real-estate-team

I have had first time investors purchase short term rentals from out of state while working full time, and they either elect to run it all by themselves after developing a boots on the ground team, or they hire it out to a competent manager and let them do a bulk of the work.

Hello allWould like to get some advice from Real Estate Developers...So, we're in Canada and we own several rental properties, and want to expand our portfolio.

I’d love to hear about the strategies that have been successful for you and any advice on how to develop a strong, adaptable investment plan.Thanks for sharing your insights!

However, if you'd like to develop a portfolio that is 100% "your own" that would be another path.

This is a ground-up development coordinated by CC&F (https://ccfne.com/), an operator that has been in business for 120 years and has built over 100 million sq ft of commercial real estate.

My current exploration pertains to new construction and land development.

It takes time to develop the systems and processes needed for consistent results.