CPA and Attorney - when and why

[Kevin A Nolan]

Hi all! This is definitely a super-newbie question - but thats exactly what i am. Bear with me.. 

So, i am in the early stages of purchasing my first home. The plan is to use the BRRR method to purchase a multi-family to "house hack" and then begin purchasing additional properties for buy and hold rentals.

I have already found a great agent and understand that i will need a CPA and an attorney on my team as well, however I am completely unsure as to how they are to be utilized throughout the process and at what point in the process, exactly, i should have them lined up. Thank you all in advance for any and all advice!