For now this is based on trust (no contract between me and her) as we are very long time friends and for me is not really about making money at this point as I'm busy regardless, but more of a help to her.

I believe this is correct - doable but very challenging to qualify STR with conventional in a high-rate environment like we've been in.Sharing this article published last year on STR Loans Options Pros/Cons, etc if it helps!

Any help would be greatly appreciated.

The cash flow from the rental will help your lendability. 

I also understand id be splitting the reward/ rent but that's why I think if I can pay 50% with him or 100% alone then is minimizes a lot of my risk. cast your vote and help me out, ahah I'm new here and to the world or real-estate so take it easy on me please.

Understanding lending and products available can help generate tax-free cash, repeatedly.

This definitely helps though.

Hey @Lisa H.Checking AirBNB and VRBO to see what other STRs are bringing in will help.

If you ever need a hand with funding, I’d be happy to discuss hard money options to help you reach your goals.

Relationship building.If you have a reciprocal relationship with another investor with a SIDRA, you can loan them money to help them grow their real estate business and they can lend you money to help you grow yours, without the crushingly brutal rates of some hard money lenders.