At this point, I would recommend having a line of credit to cover these things so you don't have money sitting in the bank doing nothing when it could be put to work.I have 33 units, no debt except for mortgages, and excellent income.

What Neighborhoods are ideal for investments?

Are there other investments you have found?

its against HUD rules to acept money under the table. 

It's important to identify your investment goals first.

After enjoying a net income of $36,000 per year on a net $67,000 investment, I sold the real estate to the operator for $335,000.

Depending on your level of income from those investments, you could be better off biting the bullet and accepting the ordinary income classification while exploring SE limiting strategies like forming an S-Corp.

I can see the advantages of being able to get a down payment to reinvest in a small MFR and I will be able to capitalize on my lower interest for some positive cash flow.All of the disadvantages I can think of involve some upfront investment for legal advice and work, time for further education and that's about it.Any feedback will be greatly appreciated.Thanks all!

What about 80% on an investment property? 

If I was looking to learn how to actually invest in real estate though, I wouldn't waste my money.