Has anyone had experience with this - in other words - can she simply decline the charge without the credit card company reaching out for investigation into the matter?

In the pitch I include just a couple of my projects from the last year as a reference to my experience. 

Any suggestions, advice, or experience you could give me.

Quote from @Nicholas McCormick: Howdy-Does anyone have any experience with short term rentals in the Bloomington, Indiana area?

Quote from @Elam Fisher Jr: Anyone have experience with mid term rentals in Baltimore city?  

If anyone has any experience advising real estate investors on these topics—or knows someone who does—we’d love to connect.

We would like to create a partnership where we are 50/50 partners and he brings the cash and I bring the experience, knowledge, and contacts ect.

My goal is to help property owners navigate management challenges while ensuring their investments are well taken care of.I’d love to hear from experienced investors about what’s working in the Charleston market and share insights as I gain more hands-on experience.

We aren't that big as we only have 5 properties/7 doors but it has been a great experience for us and we aren't looking back. 

You don't need to know everything to get started; you need a foundation to build on, and the rest will come through experience and then refining your education.You can build a basic understanding of investing in 3-6 months.