Check out "Finding & Funding Great Deals: The Hands-On Guide to Acquiring Real Estate in Any Market" by Anson Young. It's by Bigger Pockets and on the exact topic you're looking for. https://www.amazon.com/Finding-Funding-Great-Deals-Hands/dp/1947200178/ref=sr_1_1?dchild=1&keywords=Finding+and+Funding+Great+Deals&qid=1620394053&sr=8-1