So, basically you are using the $500k in crypto to secure what would normally be your 20-25% down payment in a normal financed deal.

My parents have seller financed a free and clear property they operated as a fine dining restaurant in late 1990s, then transferred as a neighborhood bar. 

I ask because I don't see many listings online that don't include much detail...and wondering if I should.All 18+ applicants must complete the application and pay the application fee.Credit score of 700+, No bills in collection.Steady employment or other acceptable source of regular income for 3+ years.Gross monthly income at least 3.5 times the monthly rental rate.Monthly payment Debt-to-gross-income ratio no higher than 40%.

After talking with the zoning department, I determined that there is not an "existing non-conforming" application on file. 

Plan to sell all POHs, seller financing, or cash sales.

In all I am learning that finance is better than refinance.

What are the best financing options for this?

Basically, it is the same as 100% finance with 2 payments. 

I have done things with attorneys, CPAs, stock brokers, insurance brokers and others successful in business.General business knowledge, understanding of financing requirements, knowing property valuations, maturity in personal financial matters to give general advice, understanding of the foreclosure process, legal aspects as to liability in leading someone into financial matters, fully understanding fraud issues and the differences in a general matter where fraud might be applied as generally thought of and what may constitute bank fraud causing or even attempting to cause a loss to an insured bank having different standards.

She is very familiar with Wholesale and Creative Finance.