i knew a lot was wrong in this but i didn't really know what to look for. i have good credit score, i am putting 20% down, i am paying for point and still the rate is 8.8 %.

None of this is useful without knowing the age/quality and ease of replacement tenant if it goes dark.

I think you need to know who your investors are.

The main reason that I want to start this journey is financial freedom, I know its takes time for it but I see this as an opportunity for that dream of quitting my 9 to 5 job.

But by having the rent at a set price everyone is happy and know what to expect.

I know ARI is too. 

And STR is much more involved with high turnover rates so you’ll not only need to post the listing but know how to keep it competitive so that you maximize bookings, of course, furnishing it, keeping supplies, restocked, cleaning, maintenance, And what about consideration to any local STR rules and regulations?  

Please let me know your thoughts and opinions.

I know it's going to be way different than single family and small multi but I'm not sure how.

As you know, honestly you want to stay comparable in order to keep great people renting your nice home.