I'll be speaking with them soon to understand the financials and confirm their goals with the sale...which previously was to get rid of the property and any ties to each other.As time has passed, their stance on solutions that they would accept to help solve their problem potentially has changed.

Biggest concerns with condos: Make sure they allow rentals if that is one of your goals, check on the availability of bank financing (FHA, VA, conventional) as that affects your buyer pool, Get a feel for how the HOA operates.

I would talk to an attorney and talk about your goals, net worth, life outside RE to figure out entity requirements. 

My goal is to have 50+ doors in the next three years and 100 doors within the next 5 years.

You need a professional who knows your particular situation and goals for the best answer. 

My goal is to buy a single family buy-and-hold in the next eight months.

What are your goals?

I think to be successful I would need to barrow cash otherwise I won't be able to do anything until my flip is sold, my goal is to work on my rehab while looking for deals.

Think about what your goals are is it financially sound decision? 

My end goal is to obtain a HELOC to aid my start in RE investing.My question is this, knowing that different loan options have different requirements, interest and closing costs, what is the best path to financing the garage now and getting a HELOC after completion?