This is a pain in the ass decision.

If i was buying houses and renting them, then it is best to hire a fix-it guy to do the repairs.

Although, i will do a better job, and then, i will know the house more fully.
But, if i am trying to grow my portfolio, then i have to go out there and find good deals on good houses.

Finding good deals on houses is a quite specialized field, and few people are good at it. (especially not those people you see on flip-house TV)

And fewer people know your criteria. (for me, replacing the roof, do it in a heartbeat, miss the subtlety of a cracked slab foundation... horror) and, i know i am not "normal"... so finding someone that could search for houses for me... well, lightening does strike twice... sometimes.

Anyway, i run into this problem a lot. Delegating is a pain in the ass, and often it takes less time to do it then to find someone to do it.

But, if you want to grow, if you want to get to a place where your business runs itself without you there 24/7, then you have to outsource everything
and do what you do best that makes you the most money / return on time.