Mortgage question with credit issues

Husband and I are about to start the process off buying a new home.

Home appraises at $175,000
Purchasing for $100,000
We will have $20,000

We Make before taxes $103,000 a year together only debt we have is our current home which we will be selling, and roughly $15,000 in student loans. We were not the most responsible young adults. Both moved out young and struggled in our 20s. Credit is between 560-590. Missed payments and medical collections.

My question is what is the best option to purchase this home?