Do you want to buy and hold, flip, etc?  

(I'm planning on using hard money+my HELOC to Buy, Rehab, Rent, Refinance, Repeat..)He won't pass any tenant screening tests, that's for sure, but I feel like I could probably structure a deal that gives him enough cash at closing to put 12 months of rent into escrow up front.  

  - Keep communicating with your partners, delegate responsibility and roles, continue to improve your marketing, track your Key Performance Indicators and look for ways to improve response rates - Make offers, make offers, make offers - follow up follow up follow up- convert a deal => rinse and repeat. 

I'm interested in SFR, Multifamily rehab and buy and hold.

Don't pay off your mortgage, get that cash to buy some distressed properties, fix them up, refinance to get your cash out, put a tenant in the house to pay your mortgage and repeat..BRRR!!!!

Then immediately contact all the cash buyers you just found that buy properties in that neighborhood and tell them about the house and would they be interested in buying it.Once you have done all that with that neighborhood, go to the next one and 'rinse and repeat.'

I am eager and willing to  learn as much as I can about real estate especially buy and hold and multi-family unit investing.

If you invest and hold out of state, you need feet on the ground to manage.

Check out Hold by Gary Keller as well.

So, in my market it generally makes more sense to leave it a SFR, unless you are going to totally blow it out to a huge multi-family, max out the square footage on the lot, and hold a long time.