However, she asked me if I accept the rent assistance.

For example. is the primary earner's income enough to pay rent and other monthly bills? 

It sounds like you won't have any trouble qualifying..In Oregon there are some tenant laws that can restrict active CAP rates, but those with current market rents (or that can attain them near term) can approach double digit return rates.

I believe Norada offers some type of warranty or rent guarantee program where Roofstock most likely does not so once you purchase and close they are out of the picture. 

Personally when I rented I never wanted my landlord bugging me but they don't care if my husband ("the handyman") is there all the time.

I lived there for a year and a half and now rent it out with a positive cash flow.

I am a finance guy but unfortunately my education is not adapted to the US real estate market and I am little bid confused.Goal:Buy a 2-3 family house to do a small rehab and rent afterward. 

OR are you just wondering whether you should rent it out or do short term rental or something like that?

We bought a townhome in October of 2022, intending to live in it for 3 - 5 years, then rent it out.

Planning the BRRRR it, should be able to rent it for $3,700 is my expectation.