Quote from @Iris Wu: @Steve Mitrano, Hi, Steve, do you mind providing an update on what you end of doing in this case?

I understand this is a good way to become financially secure over time and am eager to start.  

The crypto can be considered as EMD or down payment, the rest of the transaction will happen just as if you were running a traditional transaction.If a seller is completely against the idea of receiving crypto, you can always use a service like Bitpay to convert the cryptocurrency to cash.Last but not least, I always ask clients... why sell your crypto asset when you use it to secure a loan?

As we age much of a fear is being a burden to our children.When we are raising them we strive to provide for them.

However, they can deduct the interest they pay to you as part of the seller-financed agreement—if the loan is secured by the property and you provide them with a Form 1098 (Mortgage Interest Statement) for their records.

Bridge Loan with Refinancing Exit: A bridge loan could provide a short-term solution to pull the cash you need now, especially if you’ve already added value through your rehab.

If you’re considering leveraging hard money lending (HML) for this flip, it could be a strong alternative to traditional financing—especially since HML is quicker to secure and designed for investors aiming to flip properties fast.With HML, you’re typically looking at covering a significant portion of both purchase price and rehab costs, which keeps more of your cash free for other expenses or emergencies.

A “syndication” is almost always a capital raise for the sale of a security/investment.  

I've collected thousands in security deposit from my guests who've caused damage.

As others have stated, you have not provided enough information to determine whether this is a good deal or not.