I intend to get a single family residence, add an ADU, live myself in the residence and rent out the ADU as a studio apartment long term.I have checked my city's ADU laws and long term renting is permitted.Question : can I obtain the REP status while maintaining the ADU while it is in my primary residence?

Adding a single small unit is very expensive development.  

Single family and duplex. 

(opposed to Single Family)

Instead of debates and personal opinion, look for proof https://www.ladbs.org/docs/default-source/forms/plan-check-2017/single-family-dwelling-duplex-plan-review-list.pdf under G (Interior Env) which defines the minimum requirement of a habitable room (aka bedroom or bathroom).

Single family and small multifamily are still overvalued.

Your PM is not communicating, and this is a legitimate concern.

This is tough to do with today's high prices and mortgage rates, which is why so many investors have slowed down or stopped investing until the market turns favorable again.Below is an example of a single-family home in Allentown.

Many of these PM's have too much on their plate and are unable to provide you with consistent communication.

The Division will contact you within 30 days to report on their review.The Division will let you know if they have the authority to investigate and if they need more information.Before filing a complaintYou can try communicating directly with the HOA board or manager.