That is the best option if you are truly trying to help a family member.you cannot get control of the mortgage, you can do sub2 but you are not in control, the bank could call it due if they see the property transfers title.The other way is for you to buy it from them at market rate, then rent it back to them at market rate.

I'm just starting out learning real estate, but I can't decide whether renting or flipping is a better option.

I've reached out to the gentleman that owns the large PM group in the area to see if he knows of any smaller PM that I can connect with and I also messaged my credit union to find out what my best options would be.

But if they don't willingly make the payment your only option would be to sue, and they have the upper hand to let the lender know about the sale possibly triggering DOS.

Sure, being a RE agent is an option.

As noted, commission are always negotiable as are brokerage options (full service to discount companies that pretty much just post it on the MLS and you work with all calls, offers, etc) and an agent can go over likely net out scenarios with you and give you an idea what you likely will be able to net after closing expenses and paying off the mortgage balance. 

Another option is to invest in the market instead of paying down a mortgage.

I'd be happy to connect and chat about the area and financing options.  

I suggest your next lease have such a clause and that you make sure you can find the lease (but i have also somehow lost a lease recently).For where you are now, without a signed copy of lease i believe your options are limited.  

The options are going to non QM lenders who allow this.