We have been building with I-Joists and trussed roof systems for at least 20 years and there are many areas in the United States that still use 2x10 for joists and hand frame every roof.My take is that modular construction will never gain a substantial market share. 

@Anthony Theokary An engineer or experienced contractor would be advisable, but typically…..a wall running perpendicular to the joist/trusses will be load bearing, a wall running parallel to the roof joist/trusses would not be.As for your roof pitch, 12-14” over 22’ is a very mild pitch (20:1), unless this is a “flat” roof.

If the wall has 2 top plates and there is something tying the backing from the trusses to that wall then it’s load bearing.

The wall behind the chair is my target and runs perpendicular to the trusses.

Currently I am watching your speech at BPCON2021.

I also need to work on my 10sec elevator speech to generate interest in what I do. 

. - Trusses from a truss company, then to be approved by the structural engineer with truss calculations to be done. - Indoor sprinkler plans with hydraulic calculations and manufacturer spec data sheets.

Well, November is still not paid and I talked with them and they keep giving me the "we'll have it next week speech."

During his speech, he emphasized that management companies are not always able to provide extensive details and personal attention to every investor, and that in some cases, they may have to let go of investors who excessively harass them.

I closed on the fourplex and as soon as I lifted the tile to begin renovations I discovered the wood trusses and sub-floors are shot and needs complete replacing due to past termite activity and leaks (it's a 100 year old building!).