You do not have to become a realtor yourself, that will be additional monthly fees and responsibilities; however, if you are genuinely interest in real estate becoming an agent can be beneficial for you. 

I am always eager to learn, get trained on, and attend real estate market meetings offered by my firm and I'm genuinely interest in helping others in any shape of form that I can.

the people on this forum recognize higher cost property at same LTV will require more initial funds.  

I think the main unique values I would recognize are the 1:1 coaching/mentoring sessions, ability to walk a potential property with one of the flippers (up to 3 times/year), and having access to more localized advice (as opposed to a mastermind that is nationwide).This may not change your answer at all, just wanted to provide some additional context.

(I'm not saying you shouldn't diversify, just genuinely asking.)

I met the tenant, she seems genuine, sincere (based on her background check), and has been living as a section 8 tenant with the current landlord for last 4 years with no issues.

Pick up the phone and call a couple of people a day, you're not trying to hard-sell them..just be genuine, tell them you're now licensed, and if they know anyone who might be looking to buy or sell that you'd love the referral!

I used to work in pediatric cardiology before real estate and recognize the strong demand for travel positions right now.

I recognize it is tempting to use it as the initial investment property (it is what I did and many others have started this way), but with the 2 of 5 years occupied there will be no tax on the gains and you should be able to use that money into a house hack/BRRRR opportunity that will provide far better cash flow/returns.By the way for house hacks, I suggest starting with a detached duplex where each unit has its own separate yard. 

You will either have to remotely manage or hire A PMC - both of which may lead to mistakes that drain you. 2) Buy a 2-4 unit you can live in for 12-24 months, can do an FHA loan which will require least down and may recognize rental income to qualify3) Buy 1 or 2 rentals with 20% downIf you're somewhat adverse to risk:1) Only do 1 & 2 above2) After a year or so of getting landlord experience, you can:---Rent out your home in the 2-4 unit, if value has increased, you may be able to refi to better Rate & MIP terms (probably NOT cashout)---Buy another multi-family or another house to live in with low down payment3) RepeatIf you're conservative:1) Sell the AZ property and avoid ALL long-distance PM issues2) Buy a 2-4 unit you can live in for 12-24 months, can do an FHA loan which will require least down and may recognize rental income to qualify3) After a year or so of getting landlord experience, you can:---Rent out your home in the 2-4 unit, if value has increased, you may be able to refi to better Rate & MIP terms (probably NOT cashout)---Buy another multi-family or another house to live in with low down payment3) RepeatIn ALL the options above, KEEP 3-6 MONTHS RESERVES for when things go wrong - and in rentals, something always goes wrong!