Tips for getting appraisals high

[Brian Kempler]

I buy in Birmingham where okayish properties list for 50k, can be rent ready for 2-5k, and have ARVs of 80-90k.

If I can put 5k in and get the appraisal to 85k that will allow me to be front end profitable on rentals after refinance. 

Do you guys have tips on getting a great bang for your buck appraisal-wise? I almost need to please the appraiser more than the tenant. Putting in 15k+ wouldn't work, I'd be negative on the front end.