Doing things in the right order matters as in most rental markets it would be harder to get good investment returns for example on refinishing hard wood floors for a rental... buyers appreciate/expect refinished floors more than the typical renter... you also would not want to have 5 years of wear on refinished floors to then put it up for sale.Do all that and in 5 years you can still decide to keep it you will likely have massively increased the appraisal value, do a COR and fund your next deal. 

Each of the units has central A/C, laundry hookups and each of the units I saw, other than some minor freshening up, did not appear to need any sort of major rehabbing.

I grew up in all sorts of leadership positions so hopefully i have a good start.

I typically find Rental Zestimates to be high in my area).

But some lenders are more willing to work with folks in your situation vs. the typical lender who's never seen a case like yours and is stupidly "suspicious" because you don't fit in the box that they have in their mind for a typical borrower. 

- What are the minimum investment requirements typically?

I am also curious to how your private funding terms typically look like. 

Traditionally banks loan on appraised or purchase, whichever is lower...you may be describing a hard money lender...that's a different ballgame altogether...It's impossible (in 99.999%) of all real estate acquisitions to use financing and acquire a property with no money out of pocket...best you could do is HML if you're flipping this...you may scrape by with points and fees...If you're using HML you will have to sell the property or settle the debt with a re-finance...re-fi's are typically 70% LTV...and completely dependent upon your personal financial situation, DTI...easy to get burned if you don't have capacity or the value is not there...and this is an expensive asset.A conventional lender can't lend if seller financing is involved...lending constraints...

We typically look at these as 36-48 month balloons on a 30-yr am schedule...7-8% interest...10-20% down...Alternatively, you could structure a lease with an option to buy....same basic concept but it works differently...contract for deed offers the seller the most protection because you hold title until the terms are satisfied...and there are a few variations of each...just depends on what you're comfortable with.

We also have access to some deals for our investor base that typically doesn't hit market.