However, can you buy real estate without using any of your own money?

for double closing you would need your funds to buy then sell it to end buyer at premium. there are transactional funding companies that can lend the cash for a fee.

@Eric L Conry you are essentially borrowing on your property to buy stocks.

Would you recommend their realtor team for the buying process or should I look elsewhere? 

Investment Info:Single-family residence buy & hold investment.

or any experience buying homes at auction in Sac? 

In some cases, federal tax credits like those for low-income housing or economic development might also apply if the project aligns with certain goals.Instead of buying the land outright, developers often lease it from the tribe, which can reduce upfront costs and sometimes come with favorable lease terms.

I try to help people with their issues even if that means I dont buy the house.

If you can't identify why an investor would want to buy it - you'll likely have a hard time moving it

Also, I've always wondered why arbitragers don't negotiate an option to buy upfront?