If you fail, you can raise capital for my projects and will give you another Co-GP title. .......Or you can organically grow your real estate portfolio and credit worthiness &  keep the $30K. 

Not for a single airbnb like you are seeking (you and everyone else) but because if you start a BNB or a guest house or a hotel, you can get 40% of your investment back in the form of a tax CREDIT that you can sell for about 90 cents on the dollar. 

Although I've considered a future line of credit against the property as my best long term option, I would need to pay down the remaining balance first.

This will allow you to remove the person and do the financing on your own.Home Equity Loan/Line of Credit: Since you're looking to access equity, a home equity loan or line of credit (HELOC) can be a good option.

My tenants had late payments, but they were eventually made whole—credit where credit is due.Another standout moment was in 2021 when a major winter storm hit the area.

Credit cards have the same limitation on the amount you can borrow and will likely end up costing more than private lenders.

Credit is in order and I have a steady income.

A couple issues with Credit/income on paper.

At it's basic level:Assumption: Asking the bank to turn the loan over to you and going through the normal underwriting process, credit, income, DTI ratio etc SubTo: Taking over the loan without telling the bank, no underwriting, no credit check, no income verificationBoth have risks, but it's not my intent to be detailed in this post.

Real estate has so many tax benefits and credits available, that I always tell people it's crucial to have a CPA that's extremely knowledgeable in this area.