I'd second the 'meet with a commercial lender' and 'driving for dollars, knocking on doors and direct marketing comments'.A couple additional thoughts.First, even though I appreciate the ambition , there is also nothing wrong with going slow.

I have bought from a family trust before and in addition they sold the other 4 to me!

This will come at additional cost from what I was originally quoted.

Additionally we are likely on the brink of a market shift and selling would likely be prudent just in case.As for retiring in 6 years unless you have a sizable employment pension and significant investments (1M minimum) I would not count on it.

https://www.bizjournals.com/louisville/news/2018/0...My clients have ten flips going on in a four block radius. They are holding one and flipping two. In doing so they are increasing the values of their rentals. 

Nothing against them, I’ve gotten some decent properties from them, but as a buyer I’m looking for more of the Lone Ranger wholesalers because there’s more flexibility on the price and not additional fees on top.

Good afternoon, I posted this in the construction section and I thought I would post here for additional insight!

This will come at additional cost from what I was originally quoted.

With an additional allowance for reserves and annual cap-ex that may be adequate? 

In addition to the items you've mentioned, make sure you're accounting for utilities, trash, water, property management, and maintenance reserves when running your analysis.