We've actually attempted to clarify this recently with an update to provide some clarity. 

However, it's always best to walk the property with an agent who can give a decent guestimate on the repair cost of the house to see if the list price will work before sending out a GC.If your properties are ideal for flips and they are actually priced to sell, they will likely go under contract before you can coordinate all of that so you need to be on your game at all times.If you're working with an agent, they should be able to provide you with a rolodex of inspectors, lenders, and GCs they work with to take the burden off yourself. 

1) make the payment directly from my HELOC account2) transfer the money from HELOC to business checking account, and then make the payment from my business checking account. not an accountant, but from a tax perspective I see no benefit of one from the other, interest would not be deductible.if you are using a LLC, then money should go to the LLC but if you are buying it in your personal name and transferring then reality is there is no separation of LLC and person so you have fake asset protection.

right now its more looking like a solid 30% down providing 100% of construction upto 65% ARV .

I am assuming since I would act as the bank - I would have to provide yearly interest tax statements for the buyer.Thanks,Scott

She is an expert here in South Florida and will be able to provide you with sound advice.

After thinking on it a bit more, I am going to look into the feasibility of a rent by room strategy to increase the cash flow and speak with some lenders to learn more details about what I'd need to provide to be able to consider these rents in my DTI calculation when I am qualifying for the next mortgage.

@Whitney Lares I kept my first BRRRRs as LTRs, I know MTR and STR have higher income potential but my goal is time and income, LTRs provide me that and the management of these in STL are much lower monthly % so it works for me.

@Derek Lacy  Like Derek we require the tenants to provide renters in insurance with GC Realty & Dev as an additional insured.

If everything aligns, moving forward with a duplex can be a smart move, providing both a place to live and a source of rental income.