For example I use RentRedi and offer that as one of the options for my tenants to pay rent.

If its home that went through a remodel, typically there is not any sort of warranty and you will still experience some work orders come in.Either way, great option for some investors and currently there are still some deals out there that you can walk into equity with, which is typically why you'd want a non-turnkey property. builder warranties are for 1 year typically.. 

Depending on your new job as a 1099/self employed, there are likely other loan options available that can work.

I don't see it as an issue but many still do, at least in my small town where the majority of renters are elderly people looking for low maintenance housing options.

Have you leveraged lines of credit, private lenders, portfolio loans, or other creative financing options?

One option that has worked for us is taking out a loan against your 401K. 

They do offer access to mutual funds, but I do not love this option.

We are wondering what would be the best option to do with the property during this 6-7 month period, whether that be Airbnb or what other short term rental options might there be that could make more sense?

If you are looking to pull more cash out I'd go with the second option.

With that being said you do have lots of options.