Disclaimer: I'm not an expert on this particular program, but I recently participated in a session for those of us trying to help people take advantage of it and may have some helpful information for you.
The program is matching funds, but your purchase price counts as part of the matching funds. So if you purchase a property at $20k or higher, you get the $20k for repairs. Like all good things, there are few catches.
1. You must have enough funds for the purchase and rehab between your own funds, bank loan (partner lenders listed on the website), and the forgivable loan.
2. Good news, you get a city employee to oversee you project. Bad news, you cannot do sweat equity, they will solicit bids from 3 city-approved general contractors.
3. That brings us to the hardest catch for people to handle, the process of obtaining and approving the contractor bids is currently taking 60 to 90-days.
Overall, you can't beat free $20k. My daughter took advantage of the program and she is very satisfied with her end result. This program has been around for some time, and she is now at her 5-year mark.