When Jamie McCauley was a junior at Cornerstone University, his parents bought and helped him renovate a foreclosed home near the Grand Rapids, Michigan campus. He lived there and managed the property during college, renting out rooms to seven other Cornerstone students to help pay his tuition. He met his wife, Sarah McCauley, in that house, too. His stint as a young landlord foreshadowed the couple’s now-lucrative real estate ventures: 12 years later, they bring in up to $11,000 per month renting out 11 renovated units in five properties throughout West Michigan, according to documents reviewed by CNBC Make It. Jamie, 33, and Sarah, 32, also flip houses for themselves…