I just need my lenders to go with me and have somewhat rational terms. 

The higher the DSCR ration the better your terms and the better your DSCR allow.A DSCR loan will allow you to proceed with buying your first property without a whole lot of documented incomeAn LLC is good to hold your rental properties in.

It's a numbers game, and the numbers that matter to REI's have dollars signs in front...not street names, or store names, or school district ratings behind them.Numbers don't lie, so don't argue with them...or force them...or rationalize them.  

Where he is a simple formula that almost nobody knows, but is very cool and I share it with my students:Here we go:Leveraged return = Cap Rate - interest rate (market rate expected to pay)multiply that by the ration of debt to equity (so if it is 75% it would be 3 to 1, or just 3)add that back to the cap rate and you have your leveraged returnExample-cap rate = 8%interest rate = 6%LTV Ratio = 75%8-6=2%2% X 3=6%8%+6%=14% annual leveraged returnSo now you have a leveraged number (back of the envelope), but who cares if you don't know what it means and how to apply it.

Biggest mistake by far:Not knowing the difference between a deal and a property, and then rationalizing a property into a deal.

Based on best available data at the present moment, is there a reasonable rational logical reason to be optimistic about the property and its location moving forward into the future?

Then they rationalize everything against that hourly rate even if they don't earn $48 an hour at a constant rate.  

Maybe its just rationalization or giving up.

Yes, your pro-ration will get more beneficial the longer you stay there, but it will always be partially prorated 

Normal rent:price rations in Boston and surrounds run 0.5% - 0.8%.