Anytime I go to a restaurant or a store I feel like they're attempting to freeze customers out of the premises in order to prevent squatters from staying too long. 

A few questions come to mind based on the info in your post: 1) On the rental, Is the $50k just for the downpayment, or do you have additional funds available in reserve to cover cap x?

It may require you to maintain a specific liquidity ratio over the life of the loan, or maintain cash reserves equal to a specific number of payments, or upon inspection prior to the loan being Funded, Require you to come out of pocket with cash, for instance, to replace the roof because it has more than two layers on it, replace or grind concrete that has heaved, or embark on a program of replacing balconies that have rotted within a certain amount of time, et cetera...

Consider the down payment, closing fees, remodeling budget, and financial reserves while saving for a house worth $100-150k.

Many people buying items online, especially clothes, very much appreciate the ability to have a store nearby to seamlessly do returns at.

My advice is to have at least a 15% contingency reserve going into a rehab and your numbers should work out better.May your bottom line always be above the water line!

Cash reserves from flipping houses.

I plan to start searching for properties when I have 50k, but likely will have more reserved by the time I close on my first property.

The big box stores all have a commercial division that similar to Home Depot's ProDesk.

I do have some reserves and can also offer some boots on the ground type work.