The choice is yours on how you wish to go about it, I hope that whatever you decide works in your favor.

Will you immediately go larger, or stay around this size for the next few?

If you ever need help underwriting anything from a smaller Single Family to a larger multi million dollar Apartment Community, I've built a financial model (example on my website) I help investors free of charge if you ever need any assistance.

Larger plans usually make the SPD available on the company’s benefits website.

Dube could be persuaded to revise their work.Finally, if you are interested in commercial real-estate (larger apartment buildings, office complexes, strip malls, factories, etc) then "Commercial Real Estate Investing" by the father and son team of Pierre & Claude Boiron, while a little pricey and fairly Ontario centric in its examples and some of its material, is one of the most thorough introductory references you will find.

Maybe by the time we decide the choice will be obvious :)

This way (depending on the deal) they could take advantage of larger returns, appreciation and potential tax benefits.

The property is close to our current office but much larger.

I recommend this especially if you are starting out.Quickbooks is a good choice as well.

Instead give the tenant choices.