Of course these numbers can be tweaked to give the seller more “motivation” to sell and or give the investor a better buy for bigger profits.The authors give a “secret hint” to add to the contract a clause which states the investor (buyer) will not be obligated to the first lease option contract until a tenet is found.Hopefully this is understandable.

If we tweak your numbers a bit to say $100k/12 in monthly rental income, $50k/12 in PITI, and pretend there are no other debts appearing on your credit report and nothing you write off, and further if we pretend that you do NOT live in this property (eg, house hacking math is different and less generous), then your DTI would hypothetically be 0%.

If it doesn't, you or your lawyer/agent just need to tweak it a little bit to make sure that everything follows your state's specific guidelines.

Spending several hours per week tracking sales and tweaking my strategy, I will share some basics and comment on a few bullets from the OP.  

If not, tweak your settings for your Signature at: http://www.biggerpockets.com/profile/signatureLet me know if you have other questions.

However, as @Dave Foster said, your issue isn't with the options available to him your problem is trying to understand and tweak the psychology of a seller and owner who's ideas of running a business do not sound similar to your own.

You can also copy our reports and tweak them for your needs or design wants. 

@David Zheng.. like that idea.. might need to tweak.  

Most likely you will have to at least tweak to customize to what will work well for you and your area.Also you may consider creating a Mastermind Group as suggested in "Think n' Grow Rich" which can be as simple as selecting an imaginary council that possess attributes you admire.

I pretty regularly circle back and review my figures for prior deals to see if there are any tweaks I can make to improve the accuracy of my forecasted investment performance.I went back to the figures I’d prepared to calculate investment performance on this fully recently renovated duplex in Marietta, GA.