I'd like to apply for a HELOC, but I am wondering how that's going to go.

The permit you apply for will require a written consent from property owner. 

After working with Navy federal credit union, I was able to get approved for ~600k(1-2 unit SFR), 30yr foxed,4.5%interest, 0%down, and 2.2% VA funding fee which is wrapped into the loan. 

However, I know of some hard money lenders that will provide a line of credit after 2-3 successful deals.

During that time I’d also have the line of credit to pull on for repairs/vacancy/maintenance, and I’d have that line already established for my next investment.The second option is to put traditional mortgages on them in 6 months once the sale seasons.

See if you can apply for permits and have it inspected for a CO.

Local banks will work with you if you have stellar credit and a good track record.

I am the real estate agent and we used James Hirbour from Jeanne D'Arc Credit Union for the mortgage and had a great experience.

He doesn't want to deal with tenants, so he gives me one of the units for free in exchange for me to deal with them, and to help him land this first property so he doesn't have to apply as much effort towards this deal. 

This is some great information that I will apply in my business.