Going to use equity from home to purchase next property. 

I would like to own 4-6 properties in the next three years.

I purchased my first rental property and it needed a complete renovation.

@Joshua TellesDepends on the interest rate you can get and the equity you have.If your rates on your existing properties are lower than today’s rates then it does not make sense to refinance for higher rate debt.

Ideally, we'd love to find a duplex or multi-family property with the potential to live in and rent out.

I've currently got 2 multifamily properties here with 5 total units -- I live in 1 of them.It's been extremely difficult to find multifamily properties that meet the criteria that I'm looking for through the MLS, and when I do, they're extremely overpriced.

She’s for real estate (I think market is over inflated) but in the past we use it for rainy day fund vs holding $ for repairs as well as acquiring property via cash to rehab and sell.Regarding equity shares I would read the fine print as from what I have read you basically are selling your sole to those companies for a small payout to start but giving up a ton of equity

Also how much is the first mortgage and is the property even worth keeping?

They teach us to encourage sellers to list it if they want the most for their property. 

Making contacts including HML, contractors, RAs and Property Managers.