More of a short-term solution if you're looking to do a value-add or bridge into longer term financing on the multi within 6-12 months.

You need to demonstrate you are worth the risk.If I were to invest in someone else's deal, I would want to see their track record.

I want to track exactly what you do as a service for my investor clients, but not get into property managment. 

I'm wanting to get into Multi Family development in the Houston area and have started to look at potential projects.

No way, unless you're talking about a multi-family common area.

You may run into issues trying to take a HELOC out on an investment property, and even if you can I doubt you'd want to use it for a down payment for a primary because the rates are much higher.What kind of cash flow would you be generating from your multi once you move out?

Is this a single family or a multi?

You could use the equity from the sale to get back on track financially and reinvest in a more manageable property to kickstart your investing journey.

the marketing must be different than a $400,000 home- What aspects of real estate do the multi million dollar buyer look for, As opposed to a couple hundred thousand dollar home? 

House hacking a multi-family is a great way to start in real estate, and connecting with others in Southington will help you build a strong network.