And oh I have heard that about the majority of people not actually practicing. 

When managing multiple applications, it’s crucial to ensure your process is both fair and compliant with local, state, and federal housing laws, including the Fair Housing Act.A best practice to avoid any perception of bias or confusion is to process and work on one application at a time.

It's a good practice to overestimate costs and underestimate after-repair values (ARV) to keep your expectations realistic.

Also if you are selling, hopefully your agent has advised you but good practice to have a vacant unit to open the buyer pool to owner-occupied buyers/house hackers.

That alone was the biggest improvement for my business practices and allowed me to take all of my bookkeeping in-house and eliminate the expense I was shelling out for a bookkeeper.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

I mean, why bother to practice what you preach?

Simultaneous to that, negotiate price reductions to the greatest extent possible because of this extra cost you are incurring. 

The more rational you are, the better the outcome.Practice and LearnLike any skill, negotiation improves with practice.

Quote from @Mikal Toliver: It’s an exciting time go learn, understand, and practice real estate estate investing.