If you do have to move because of a job, you would be safest (in my opinion, i am not giving legal advice or financial advice), i would sell that property to ensure that you did not just purchase with the goal of moving out early and taking advantage of lower rates and lower down payments for purchasing your home as a primary residence. 

Stay on top of things, stay organized, and track every important date, from due diligence to contract extensions.Early on, I got myself into some pretty stressful situations.

You don’t want the stress —- so don’t do it.

That is lower than market and puts you in a cashflow-neutral situation, but it is unlikely your residents can afford that.

I would tell people today that if you buy a primary residence expect to stay in that home for atleast five years, especially with a FHA loan which has lower down payment as the current forecasts for home appreciation or very low which with closing costs on the buy and sell, it will take several years to have equity in the property and enough to be able to sell, so that is something also to consider.

I'd bet that this note is worth more to you than to most buyers until the note is much lower LTV, but I'm a novice in this space.

With $50k, you likely have enough to get started, especially if you target lower-cost markets or use a strategy like house hacking.

These platforms typically have billing policies where you pay a per unit fee per month to the software and you get regular updates and support each month.There are a number of low-cost platforms available that are able to offer you a lower price by passing along some of the costs to your tenants (payment processing fees, applications, tenant screening, etc).

Many states have discounted property taxes and lower yearly increases for owner occupied properties.

Markets like Texas (San Antonio or Dallas) or North Carolina (Charlotte) could offer better cash flow with lower costs.