Find out if there is a wall with convenient access to plumbing drains. and if that area could work as a kitchen.

Caveat, experienced investors rarely "shop" they usually have one or two lenders that specialize in certain products, keep all of the investor's data on file with current documents and they tend to care more about convenience, experience, and just getting the deal closed so they will continue to go to the same lender who can make that happen. 

Give 60 days notice and set your increase based on comparable properties and the convenience on not putting out the money for the rehab now.

I would say it all depends on location.For me, Home Depot is the most convenient for building materials (wood, sheetrock, screws), but for finishes including appliances, cabinets, windows, and flooring, I shop around my local distributors.

It looks convenient where I can fill out form online to complete the application. 

Also the location is much closer and more convenient for access to Eglin and Hurlburt.

Shop consistently with a locally owned store that is convenient for you to stop at often.

- How do I convince my parent's I'm not gambling my savings?

(How convenient for an AC to break between tenants huh?

In my case, I was actively looking for a Equity Partner (until recently) to buy multifamilies in my city but I realized that a debt partner is way more convenience FOR ME so I do not have to split my return.