I have met some private investors that are interested in helping me with the funding of my flip, but I haven't found any properties yet.

With the idea you get your 6k back when fund deal/deals  MLM all the way sell the futures and the deals that Cogo did pay me off on as you stated took forever to fund and the rates were even higher than mine :)  Its just a very good Guru selling his stuff we all know they make the money selling the 6k how to become a lender. :)  

I was wondering if most wholesalers have stopped using direct mail and just moved to google/facebook to find deals?

I can buy a 2-4 unit with 20% down vs conventional can only buy a 2-4 INVESTMENT property with 25% down 4. there are options where DSCR loans dont repot to personal credit, helps in not having to show a bunch of paperwork or not one person in a partnership has to carry the debt5. way less paperwork to close on this loan type vs a conventional loan. we care about the income of the property you're buying and it's ability to service the debt of the property whether we use long term rents income, lease income, or air dna/bnb income.6. easily buy in partnerships, add people to your operating agreement, its as easy as that so bring partners into a deal. helps with scaling and raising capital or getting partners involved7. gift funds allowed to close on these as well, and like I said earlier, there's only a 10day seasoning period of funds with some lenders so that means you can literally have a private money lender deposit money into your account 11 days before closing, and you can use those funds to close!

I know for example we can fund up to 90% of the purchase and 100% of the rehab when we're funding the purchase and the rehab.

When dealing with federal, state, and local NOFA (notice of funds availabilities), do government funds allocated for affordable housing often get depleted from too many developers requesting funds for new projects?

funds only go into interpleader after months of sitting in escrow. the court just does not hand the money to the seller either.. if not agreed upon the funds go to the state etc.

If you are going to do a HELOC then you must understand the cost of using those funds.  

And I also think that the inventory in your market plays a large role in deciding what property type makes the most sense.In my market, there is a large abundance of the small multi-family properties, especially the 2-4 unit properties.

I even bought 3 properties in one day using the HELOC to fund the down payment on each of those purchases.