Raise work retirement percentage for real estate

[Eric Lefebvre]

A light bulb just went off in my head. I put 10% of my check to my retirement fund. Once I found out u can move the retirement fund tax free to invest in real estate... that was my plan. I'm trying to save for more down payments on rentals. Im about to take my percentage to 30% of my check to my retirement fund from work to shift into investing in real estate. UNCLE SAM takes a ton out of my check anyways to why isnt this talked about more? Save so much but putting it in your retirement tax free then shift over to real estate purchase with no taxes taken out. I am relatively new to investing but can anyone see any drawbacks to this? It seems like a no brainers. Only thing I can think of is the bank will see ur take home income lower so they wont give u a higher loan. Thx for your help in advance!