Check my homework on this?

[Christopher Hilsenbeck]

3000sqft SF Bay Area (Marin County) duplex for sale. 

Unit 1: 2br/1ba 

Unit 2: 4br/3ba 

ADU: 1br/1ba, kitchenette

Is this insane? In order to make this cash flow, I will live in the ADU and:

STR Unit 1 (comps are 60-80k/yr)

STR Unit 2 as both "entire house" and 4 separate "private rooms" with shared kitchen.

Entire house comps: 87k/yr

Private room comps: 40k/yr/room

STR comps for all units is roughly $15000, which will cash flow $5k/mo

LTR comps for all units is ~$12900, which will cash flow $3k/mo