This can also make it easier to secure financing for the future multi-residential building, as you can structure it separately from the retail business.

IS there anything the building can look into to fix this issue?

@Greta Andrews Both real estate investing (REI) and business acquisitions can be profitable, but the choice depends on your goals.

Absolutely can.

Can you recommend a hard money lender in mind?

You can maximize your cash this way with the lowest rate possible on the debt and be able to reinvest all the while still generating cash flow. 

If you are an expert in using rental property calculators and can help me discern which one might be the most accurate, please let me know.

The amount of digital ink that is spilled on this site about LLC's and how to set up complex structures  by folks who can hardly be called investors is a bit maddening to me as it keeps folks from actually investing dues paralysis by analysis due to things that really do not mater a great deal.

If you show up and he's not on the property, place his belongings in the nearest dumpster and when he comes back for them, let him know where he can find them and that he won't be treated kindly if he steps on your property again.

Building a scalable real estate business requires developing a foundation that can grow efficiently without exponentially increasing operational costs.