In the discussion that ensued he laid out property condition spectrum with three distinct points of reference: Fully Performing; Value Add and Rehibilitation Condition.  

I have the impression that portfolio lenders give loans based on the performance of the properties.

If you do business with them you wont have to worry about what neighborhoods to stay a way from as if your investment performs poorly they will make sure you are successful with all the guarantees and promises needed in order to make a low quality property perform like a good one.I have copied the link here where you can see that the lifetime guarantee is part of their program.

If the rents support the mortgage and the note has a good performance record then the lenders will be more inclined to work with you.

., USAW Performance Coach, nationally recognized personal trainer, post rehab specialist, certified Kettle bell & TRX Suspension Training instructor, motivational speaker and author.

On Parris Island everyone yells at you, but it was the first place I had ever been where people treated me according to how I performed. 

How you accomplish this task is up to you.

Action is great but just ensure you are performing your due diligence.

Your best option is to get the full property performing before you move in, as your occupation in the larger building does not enhance your cash flow. 

Do the math early in your journey to keep you from going down the wrong road for 10 yrs before you figure out that the vehicle was not the best one for the task.