What other concepts could be added to list of options? 

Once the property is in service your rehab costs will be added to your cost basis. 

For example, for a 500,000 purchase, the Land Transfer Tax would be approximately 6,475 while if the same house was purchased in the City of Toronto, expect to be charged about 12,950.And as a foreign buyer, a premium would be added: I really don't know the numbers here anymore, consult with a Real Estate lawyer for an estimate here.- Work Permit ?

A a low-temp sensor be added for you to be called if the temp falls below 55º ?

Do you know if a roof that was replaced due to an insurance payout can be added to the basis?

Likewise, a property manager should be added to a landlord's policy.From my blog: What does it mean to add your property manager as an additional insured?

We have two per month, which will be added to the events section of "Bigger Pockets AVL Meetup" on Meetup.com later today.

It is still quite restrictive IMO and would not allow for many STRs but some to be added to the local market. 4.

It may not be a bad idea to also be added to a MLS search to receive any new build listings. 

In some cases, non-cash expenses, like depreciation, can be added back.