This will help you start to see how these criteria impact what your site can actually support, so when you actually pursue a project site and you get an engineer involved you aren't surprised by what he tells you can be designed for that property. 

Here's what we do (copied from our website):Screening ApplicantsPoor screening often results in lost rents, legal & court costs and costly damages.Screening of applicants includes the following:Full credit/eviction/criminal checks are done, instead of score-driven reportsVerification of rental history includes validation of actual property owner to avoid fraudVerification of stability of income & employment via YTD paystubs & W-2(s) (analyzed to confirm not fakes)Income is calculated 3 ways to spot stability anomalies: pay period, YTD average and YTD + W-2 average.Debt-to-income analysis (more accurate than traditional 3x rent requirement)Bank statement to see if NSF issues, if deposits support income, prove MoveIn Funds, also analyzed for unusual transactions.Pet screeningHolding Fee required from approved applicants to make sure they are serious, before your property is marked pending.

We tried an outsource screening service once, but were unsatisfied with their process - which was designed for Class A tenants.With 3,000 units, an outsource company would probably promise to modify their processes to whatever you wanted that was legal.

We spent a little more then usual because we wanted the finished product to be hi quality and we spent on nicer finishes, design and staging.

Our next real estate investment is our own house we’re build on land we own in MN using Landmark Home & Land company that provides full service support to owner builders with their kits from design to permitting to completion.

If the pictures look good confirm the crime and rents, and make an offer.  

I would imagine I would simply confirm every payment I send out with my partner, but that seems to ruin the point of me handling all the work so that they can have a completely hands-off experience.

I am an agent and I always ask the other agent to confirm receipt of my offer. 

Has anyone used a software or website that helps them store designs for houses?

And when the market turns, they will drop you in a heartbeat and leave you with a mess.If you're going to let someone sublet/sublease your rental for a profit, you should only consider it if you can confirm they are professional and they are willing to share some of the profit and reward you for the increased risk.Personally, I would walk away and stick to your original investment plan.