I go to make my move and purchase properties, and the lender closes/freezes my HELOC due to the economic conditions.

Before talking about an LLC, you need to determine the economic substance of the arrangement.

But I am at risk of economic injury. 

I think you need to choose an economical route and a degree plan that makes sense so you aren’t wasting money on classes that serve no benefit to you.Or start educating yourself on the career it seems you have already decided on and save a lot of money.

. - With all of the economic uncertainty and many folks losing jobs, you may find success in renting to section 8 or other rental assistance programs.

Would i be qualify of getting a sba economic injury disaster loan(3.7%) to pay up heloc loan(4.7%)?

Generally I’m not crazy about RI’s economic prospects.

There are also some private lenders that provide loans against your equity - but the pricing is much higher, in the 12-16% range, vs 3.5-5.5% for a first lien against the property.If you are free and clear, your first look should always be toward the property's capital stack directly, as that is the most economical.  

Amish pay into their church every Sunday but in return they can borrow money from the church for things like health insurance or more importantly a house loan.

The economic delta between where you earn money and Milwaukee needs to be wide enough to make it economically viable.