This doesn't mean I wont fix the A/C if it goes out, but it does mean they are not allowed to complain that there is not a garbage disposal or screen door.4. 

What do you employ for a screening strategy? 

(To cover mortgage and what not).

From my research, it seems like it's probably pretty common in DFW area to have tenants do lawn-care, but I'd probably need to cover items like pest control, HVAC check-ups etc.Also I am seeing mortgage rates for investment properties ~ 5.75% to 6%.

Hard Money rates are too outrageous, some conventional lenders will lend for the purchase price but not the rehab, and lines of credit are an option but it's hard to get a business loan large enough to cover 100% of the purchase plus rehab if any.So, here's where I stand.

I am wondering what other landlords do for application fees when screening tenants.

Hopefully everything goes smoothly once the tenants are screened and rent is coming in. 

Anytime you have a couple looking to rent, and they only want one of them to fill out the application, you can bet that's because the one they don't want filling out an application has a boatload of derogatory stuff that will turn up upon being screened.

Do I show the property before I screen the possible tenant?

They will not accept the deal if it is just a subject-to offer in the amount to cover their mortgage payment.