Find a good DSCR Broker that works with a variety of lenders so they can tailor your scenario to the right lender. 

A small correction on @Brian Burke mentioned about the centralized location, while there's no one place, there're actually multiple places, that offer view and feedback on a variety of syndicators.

December and Jan are the least attractive times of year to move for a variety of reasonsIf you get a good application with Feb move in, take it.

Wood has a huge variability in strength--between pine varieties, the stress which can cause them to fail varies by more than 2x and you can see 20%+ increase in strength as it ages.Then I have stress concentrations which will yield and then redistribute the load in practice, but not according to the calculations I'm allowed to do. 

Landlords can enter a tenant's property for a variety of reasons, including: Making repairs or replacements Responding to a tenant's request Removing unauthorized window coverings Preventing waste of utilities Changing filters, testing, or replacing smoke detector batteries Inspections Helping with an emergency inside the unit Posting a notice of eviction"Research your state laws because some of your comments indicate a lack of understanding of the landlord/tenant laws where you are operating (like threatening the tenants to keep the security deposit if they don't respond to you, I doubt that is actually a valid reason to keep their deposit, or evicting for late payments, or charging the tenants for your warranty repairs because you missed your 11 month inspection window which was your responsibility, and it looks like your lease says you can charge up to 18% interest for unpaid fees, is that actually legal?).

I suspect in the mid west and were values are more like Median at 250k to 300k there are many more paid for houses by wide variety of ages.

When looking back, that isn't an accurate way to do it for a variety of reasons, plus it is a hassle every time to do the math and collect.  

A bend don't break approach that is still favored across a variety of materials used including steel reenforced masonry.

NonQM "shops" offer a variety of loan types, DSCR being one but they are the lower rates and fees.

He will have a variety of answers to your questions.