So, you could be stuck with that money tied up for the length of the wrap.If the Subject To teacher you learned that from told you this was a good idea, go get your money back.BobNot trying to start an argument here - just detailing my experience here.I agree with much of what you say. 

I would recommend holding and renting to build a portfolio, but I don't have all of the details and at the end of the day you should do what's best for you.

Without a formal term sheet setting forth every detail of the loan, makes it appear as a fraud.  

I recommend you add a little more detail to this post.. what kind of property etc etc.I have done probably more than 12 to 15 deals in south side all 2 to 4 flats.. at first they all sold to investors the last 3 or 4 sold to owner occ. 

@Matt Wells DSCR may be a fit for you but knowing more details will certainly help.

Before getting a loan, chat with a mortgage broker, think about your goals, and be ready with your money info and property details.

You are not allowed to ask the tenant for details about the disability itself, but you are able to verify the presence of one, and that it requires an ESA, and that whoever prescribed it is a real licensed professional with the appropriate credentials to legally prescribe ESAs. 100 bucks says they won’t reply if they got their letter online and don’t really have a disability requiring an ESA. 

Is there a program or software that allows you to easily observe all the properties in your portfolio, as well as their details?

I hoped bigger pockets could connect me with someone who could help me dive into the real life details without the normal youtube spin trying to sell a book or program.From what I've read flex spacing is a small retail/office space attached to warehouse space that can be separated into different sizes depending on the tenant needs. 

For more detail will need to inquire.