@Ned Carey, yeah the only thing I could think of is the suitcase of money.  

Keep in mind, its only the guest and their suitcase coming in and out.

Storage, i was looking at getting a bed with under-bed drawers, as well as a dresser in the bedroom.The current stair design allows for a closet at the bottom of the stairs that will house the hot water tank, and additional storage for cleaning supplies, suit cases, etc.

Like suitcases full of cash because in my market conventional financing loses every time. 

I probably would not have let them 'move in' (with all their furniture and stuff--more just a place to stay with a suitcase and air mattress or something), but I decided to pass on that idea. 

My suitcase was opened when I returned and I had a bag that was ripped in it.

Unless your world currently fits into a suitcase, the cost of moving is very expensive. 2. when it comes time to sell in 1 year, perhaps the market has moved up, you'll sell and make a profit, but the problem is that if you buy another residence but in a higher market, that profit essentially disappears so you're back at square one. 3.

It's east of Suitcase city so extremely transient tenants won't be a problem but the last time I checked it was populated by probably 40-50%, as an educated guess, by students.

@Mitchell T.Thanks man, its tough, not gonna lie, Ive lost a few bids to the suitcase of cash scenario but Ill keep at it.

The IRS specifically allows this and it's a great benefit to save the money you would normally spend on a vacation and drop your suitcase in your own house.