Should I just get one of the posters electronically and include it as an attachment to my tenants? 

For example I see "rent to mortgage comparisons" that don't include pointing out that a 30 yr fixed payment could be higher than comp rent today but what about after 5 years or more of rental inflation? 

Methods I have used include:- House hacking - I lived in one unit of a 4 plex I bought using an FHA mortgage and 3.5% down payment- BRRRR investing - I bought a house in rough shape, rehabbed it, did a cash out refinance, and rented it out, and repeated- I bought a single family home, lived in it for 2 years then turned it into a rental- I took three loans over the years from my 401K for the down payments on 3 of my houses- I bought a 4 plex non-owner occupied using a conventional mortgage with 25% down, but over the course of 5 years it doubled in appraised valueI have one property with a 15 year mortgage and I break even every month with rent.

You can use Cozy or your state LL association for background checks, credit reports, and docs. including leases.

Louis County (including Ferguson)  that offer good investment opportunities.

You have seven points here that include, by my count, at least 28 questions that need to be answered in this post.

I have entered estimates for repairs and will possibly begin an offer at $105K.Here is a link to the Google photo album of the interior of the house - https://photos.app.goo.gl/mMoCL5Erq4hcqAdP9The figure for Plumbing is for each bathroom (2 1/2) as a full remodel.The figure for Doors includes reframing with lumber and doors throughout the house and windows, which also includes drywall, mud and other appropriate items.The figure for Cabinets/Countertops is for an entirely new kitchen with appliances.I appreciate your feedback.

Closed on my property yesterday, received my final closing documents today and I see that lender wire me more money than expected, turn out a part of my seller credit to buyer is not included.

There is risk involved with everything, including walking to the local deli for a sandwich on your lunch break.

The tenants esstopal letter should have included that information.