Here is how most work:•Rates: 9% to 13% (Most Deals are 11-12%)Terms: up to 36 Months (Most Deals are 6-12 months)Fees: 2-4 points(%) of loan amount paid at closing (Most Deals are 3 points(%))Minimum Loan Amount: $50,000 (For loans less than $250,000 $2,500 minimum fee)Max Loan: 65%-70% of After Repair Value(ARV) 100% Rehab Financing Available (Require 20% of purchase price down payment or cross-collateral)Closing Timeframe: 48 Hours - 3 Weeks (Most Deals are 2 Weeks)NO PRIMARY RESIDENCES, NON-OWNER OCCUPIED ONLY, BUSINESS AND COMMERCIAL USE ONLY.

My question is, whats the best way to finance it- I can use the HELOC for down payment for a conventional loan, but then how would I have the funds for the rehab?

This is outlined in Title 18, Section 1725 of the United States Code, which states that any person who knowingly and willfully deposits any mailable matter such as statements of accounts, circulars, sale bills, or other like matter, on which no postage has been paid, into any letter box established, approved, or accepted by the Postal Service for the receipt or delivery of mail matter on any mail route with intent to avoid payment of lawful postage thereon, shall for each such offense be fined under this title.Violating this law can result in a fine for each piece of mail that is improperly deposited.

Ultimately the borrower sold the property before sale so it was a non issue but had they not, and had we continued with default, if we did not restructure the foreclosure (difficult), we would have more than likely had to wait until sale, suffered a loss, then filed a title claim (Time...time...time...) to hopefully be made whole. 

DSCR loans are based off of down payment, credit score and either actual or market rents so it helps to supercharge an investor's real estate goals and net worth.

It is good practice to obtain from them the actual 1098 and to remind them that they are no longer entitled to the deduction since they aren't making the payments anymore (again, these things are usually spelled out in the sub2 agreement).

I'm wondering how people go about leasing their section 8 properties when max rent allowance for a zip code is significantly higher than market-rate (non-subsidized).

At 5.75%, I don't know that there a ton of room for improvement in the case of a future refinance, either, so I wouldn't expect the payment to drop by a large amount. 

Or is it better to wait out the seasoning period with your loan balance (I used a HELOC so no hard money lenders or balloon payments) and just refi out in 6 months?

You might utilize these extra cash for a down payment on a different house.Another good alternative is seller financing, which may be arranged directly with the seller and may entail a down payment and interest-bearing payments of the remaining amount over time.