I recommend that you find a trusted or recommended Mortgage Loan Originator (MLO), who can give you options for property-based loans (mostly investment loans) and they don't use your taxes but the P&L of the property.

I think you would be wise to sell and use the VA loan for your new home. 

Quote from @Jaycee Greene: Hey Jaycee, we currently lend on several loan types: Fix & Flip up to 90% LTP, BRRRR, New Construction, Bridge Loans, & Multi-Family.For myself personally, I'm looking in the Orlando, Philadelphia, and Southern NJ markets, 1-4 units.

Get it under agreement for less than asking price and offer to bring the loan current and have them carry that loan.The way I see it is they are just getting MLS properties under agreement - the last five I looked at had been sitting on the market for more than 150 days (overpriced) because the payoff of the loan would not be satisfied at lower price point. 

The deal will leave the seller at your sons mercy for decades (the life of the loan).

So for the first property which will cost over $1 mil to construct, there will be stacked loans, essentially $280K will come from loan assistance program,( the name is not correct but the same idea).

Hard money and private investing are both ways to finance flips, but they work a little differently.Hard money loans are typically from companies or private lenders that specialize in short-term, high-interest loans.

If you did finance some of the purchase using a non-recourse loan, then you need to read up on UBTI/UDFI and there are some taxation benefits that the IRA can achieve since it now owes taxes in that scenario.

(Even went beyond the second page of Google.)I have an investor who wants to partner on a deal by providing a loan for the down payment.

Explore FHA loans and mentorship opportunities from experienced investors.