Wanting to get into multi family investing NOW but short on cash

[Chloe Calder]

I have one rental property that I want to keep. It is a condo and they will be raising the HOA dues shortly, but I will still be making a profit off of it. I am interested in getting a multi-family property in Sacramento area and found one for under $500k but don't have the 25% down to make the offer.

It's been on the market for over 100 days so I'm sure there are some issues and I'm wondering if anyone has had success bidding very low on something that has sat for so long. 
Alternatively, I'd also like tips on finding an investor to help me make the purchase or find another way? 

Looking for any advice!