If you simply want to "get involved in it" I would suggest seeking out local, licensed property managers who are hiring.

I recently met with the owner of a property management company.

It's possible the deceased father agreed to let her manage the property and keep the rent net for her troubles, but the title/ownership remains in him so his heirs would inherit it as a legacy.I suggest your friend familiarize himself with the statute of frauds which I believe requires agreements regarding real estate be in writing to be enforceable.

Happy to help you find more investment projects or land deals in the area.

The revenue projections seem reasonable to me because I have another STR in Glendale with 4B2B that is on track for $90k this year.  

Most stay, they're still below market rents.Our maintenance management system has a ticket that either gets satisfied or generates follow up visits to inquire about the lease anytime they're at the property on other business.

Do you have the skills needed to manage it well and prevent losses?

You didn't even mention tenants who don't pay rent, evictions, vacancies, HOA violations, the consistent rise in taxes and insurance, bad property managers, and the many other issues that cut into your profit. 

@Adam SchneiderRecommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder, etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

I dont mean to be blunt here but these all feel like questions that your agent should be giving you guidance on since they know the details of the purchase, the comps, the interest rates, the projections for your investment etc.