If you are in the actual SubTo community, there is no way they haven't been spam calling you and grouping you so you should have access to that inside of the Facebook page or paid groups.But, seconding @John Clark, if you are new as an investor, choosing SubTo is going to cost you a lot and get you a little.

Can any of the construction/conversion costs be used to offset the income?

A strong managment agreement between tenants..   

I thought just hiring a property manager would make it really easy.  

So far, I assume I was unlucky.Beside that the management team is fine.

Partner Driven financed the W 7th Ave deal using its own capital, covering the $304,000 purchase price and $40,000 in renovation costs.

Especially for the cost.

We usually cut a permanent dryer vent in the wall and use that to exhaust it to the outside (instead of hanging a hose out the window, yikes again).If you don't have forced air in a property (meaning if you have hot water radiators) a mini-split system is one of the most cost-effective ways to cool a house.

Anyway, these two are in different states and are handled by property management companies. 

Hands off ADU addition will cost significantly more than $100k.