If you overpay and you're underwater on your loan immediately, it limits your options to sell or refinance should something come up.2.

If they know that you changed ownership, they may call the loan due.

.: @Marcus Auerbachjust to dig into 'cash flow' a little more... would you agree that if you bought a solid property in Milwaukee in a solid neighborhood, using a DSCR loan, you will be break even or negative?

My question is that if a deal has a mortgage subject to an existiting loan and a private lender funds the purchase of the enry fee (wholesaler fee/agent fee/cash to seller/etc.)

It will be a DSCR loan, under your US entity or personally held.

Not looking to refinance due to the great interest rates  4% on 30 year loans but would have not talked to any lenders that will do HELOC's yet.   

I don't need a downpayment because I have yet to utilize my VA home loan, I want another townhouse or SFH in the San Fernando Valley because of where my job is currently located, just makes everything way more convenient for myself.

Can definitely get no income no doc construction loans that would allow for it 

Would this help me at all when it came to the tax on my flip @Michael PlaksIt will help you qualify for a better loan. 

Can one partner loan money to the partnership in the case of an unexpected repair?