I have been searching online and calling numerous companies only to get No answer or told that they only market their own homes or the last scenario is a company named Coorporate Housing By Owner that makes extraordinary claims toward keeping the home rented and generating a nice monthly income between $5,500-$6,500 per month, however this companies reviews are mostly all negative.Any knowlege that you can share would be greatly appreciated. 

With interest rates at a 10 year high, numerous potential home buyers are flooding the SFH rental market because they cant afford the interest rate on a mortgage.

I have taken on numerous multi family projects through the years, from six-plexes to 75 unit complexes, with generally smooth transitions, except for one twelve unit property filled with unemployed criminals and homeless campers.

The point is that actual cash flows are volatile and it is silly to attempt to predict a single numeric value projecting cash flow or ROI. 

Can rent rooms in OO unit to improve cash flow/ROI.There are also numerous books on syndication, but I would be reluctant to invest with a syndicator that did not have any investment in the deal.  

Example of what I am looking for(these steps would give a template on how to set it up and then the user can customize based on own criteria):1) Create a pre-approval form that gets put on the listing for tenants to fill out (save time from taking phone calls from people not serious)2) Form gets submitted and an automated email is sent to them with approval or not (saw something about writing some code to customize the email based on form)3) If the applicant is approved, then they get calendar invite for a showing4) Etc.Everything in this process would be automated to save time.

By the way, I've worked with Guaranteed Rate numerous times in the past to finance the purchase of some SFR investment properties. 

For reference I’ve read numerous real estate books front to back multiple times (skip the flip, creative cash and all of the books published by bigger pockets).

It had been listed for about six month with numerous price decreases.

Those that pass the initial stuff we invite them to complete our own application, some do others don't we never remind or encourage them.