A few smaller private lenders may offer 2nd lien products, but they will be under very specific criteria and with a combined loan to value usually below 75%."

You’re trying to list a MTR and you didn’t list it in the only site specifically geared to MTR?

Have set criteria for Acceptable, w/ conditions and Nope - and stick to them. 

In my experience, homes with window units only require a specific buyer versus having an HVAC which most buyers tend to prefer.

You can still deny them for other (legal) reasons that they don’t meet your criteria, or go with a more qualified applicant instead.

Is your DSCR ratio greater than 1-meaning are you cash flowing (according to the lender's criteria of mortgage, property taxes and insurance (and HOA) if applicable).

They didn't specify specifics, but they said that they will work out a new rent schedule to account for the transfer of costs from yourself to them for heating and cooling.Incidently, they were trying out these new window heat pumps that look like a horseshoe. 

Define your "buy box" or criteria for your first property (this may change a bit as your start analyzing deals and looking at properties, but it's important to know what you want). 3.

I've worked with clients that have had to put more money up front into the transaction because the specific bank they wanted to work with required it.

In this scenario, the $200/month of cash flow is assumed to be invested somewhere else or used outside of this specific property.