Since CoCR is only measured during the first year, based on the initial cash you put into the deal, you should start measuring it immediately.Also, ROI is a mixture of actual profit and a variety of imaginary, hopeful financial gains. 

The general idea is to renovate the kitchen with new cabinet & counter top; Update all the restrooms; patch up all walls; remove pop-corn ceiling, repaint whole house; re-sand and re-stain all the hardwood floor; some plumbing work; install can lights in all rooms;  move some lighting fixtures; add/move switches and wire for Ethernet.  

It will be like the ill-considered mandate for 10% ethanol in our gasoline which substantially reduces fuel economy but funnels a lot of money to corn farmers. 

Up here in the Chicagoland area we use CA-6 stone which is a mixtures of 3/4" gravel and fine grades of sand.

The goal for me is to replace my 9-5 income and I believe a mixture of SFH and Multifamily will be the quickest way. 

Additionally finding a good PM for c class properties is like trying to find a 4 leaf clover in a corn field.I would advise against investing in C class based on "potential growth".

Soybeans and feed corn. 

It's a mixture of risk tolerance and human nature. 

@Peter GoellerI would spray it with a bleach/water mixture, wipe off excess, let it dry, prime with Kilz, and then paint.

I keep a scoped pellet gun, pellets and squirrel/starling bait (corn) on the enclosed back porch of one of my houses.