Another would be you are building other units next door/nearby and you can chalk this build up to the "learning curve".I didn't see a CFO on GLH or GLC's website, but I'm sure you have someone doing this type of financial analysis for your developments?

Working with AvantStay caused me large ongoing financial losses.I signed on with them to manage two of my properties in vacation markets.

Prioritize your financial stability.

It might take a large financial institution with capital for “brainpower” and marketing, and financial and reputation strength to design as well as create a trading market for this type of security. 

Consult with a qualified tax advisor who understands these limitations and can help develop a comprehensive strategy aligned with your specific situation.Remember: The best tax planning looks beyond immediate deductions to your complete financial picture.

You hit the nail on the head...that's where the SFH to Duplex conversion gets financially unrealistic.

Quote from @Michael Smythe: @Jerry NoguerasRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

A true recipe for financial disaster.

I would think a lot more about the financial part of this.

Quote from @Eliott Elias: People don't take action.