The other is a smaller operation which does a lot of business in the specific neighborhood the house is in.

When I first started, they said I would get results if I just followed their instructions and got indoctrinated in the principles of mindset.They told me, that people actually don't learn from books, courses, sermons or watching videos, but by having a "relationship" with a coach or mentor.   

I was conducting an extremely seasonal business and after 8 years of operation the business was insolvent. 

My wife and I are a team in our business too.

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.

Business justification of LLC-B --> This is can be a problem.

Is the mid term rental business that you have a 'rental arbitrage' business?

They have been managing fine, although not too busy, I guess because of the market.

May negative cashflow until fixed.3) Buy established business: assuming you mean something other than real estate related.

@Jacob HavlovickBigger 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.