looking longterm who knows what's going to happen in the market.The largest thing to be cautious about is that with commercial tenants you as the owner often have to put up money in the form of a check or abated or free rent to help the tenant get open for business and build out the space. 

Does anyone know if Stessa is going out of business?

Not everyone will be successful in this business especially during times when people are essentially jumping on the bandwagon. 

Financing through a personal loan usually offers better rates and lower costs, but using an LLC builds business credit for future investments.

Their entire business plan is wait a few days to come out, charge  deductible, go back to the office to order a part or two that will come in a day or two.

She sent me a letter from Commercial Property Advisors, Peter Harris, which stated she had approval for funds sufficient to cover the purchase price and below it listed a Wells Fargo business account showing funds in excess of the purchase price.

Almost any business you look at has its own gurus and scammers.

It's running a business NOT renting a house.  

If a HELOC isn’t an option, alternatives like a home equity loan, business line of credit, or a DSCR loan could work depending on your situation.

Bigger Pockets is a great place to find a real estate tax accountant.A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.