As @Nicholas L. stated what are the expenses going to be if you had to put money into the property and could you raise the rents if you did fix some of the issues.

Are there any considerations I should be aware of and account for when under contract with a property owner who has an assignment contract with a wholesaler/investor? 

The time it takes for a zoning variance, the money to dig out the basement and the level of risk for what seems like might be your first project is a lot.

Other cash such as down payment or money to fund your escrow / impound accounts (accounts that most lenders require for your property tax and homeowners insurance shouldn't be included in lender fees).

You may not be able to get as much house for the same amount of money if you decide to buy another rental in the future but if you do your research and spend time searching you can still find good deals for similar properties.

I hear there are softwares that allow you to pull the money out of their bank account.

License, which is a considerable process itself. 

I want to save money by doing most of the work myself on a renovation project I have coming up.

Disney area is not really a cash-flow market right now unless you invest a good amount of money into theming AND you knock it out of the park with that spend.They've been building these large themed houses by the literal thousands the last few years and there are a lot of them. 

) any ways , she gladly paid the app fee, filled it out on the site, had paystubs ( she is in the service industry) makes enough money no problem.