I’m in search of a comprehensive guide that covers the fundamental aspects of real estate investing, such as key principles for successful investments, effective lending strategies, thorough deal analysis techniques, understanding syndications, and property management best practices.

The family member has held the buildings for decades and managed on his own, but he is 80 years old with health declining and cannot properly manage them anymore.

For less active income (some would refer to as "passive income"), without a job, you're going to need to get a dscr loan but you'll also need to have a balance sheet to take the property down meaning you're probably going to need to partner.I would also try to see if you can improve your health issues before you start this new venture.

Solving Radon is super easy and relatively cheap for houses.

It also comes with a restaurant that hasn’t been in service for 40 years, but the structure is in surprisingly good shape.Here’s what I’m thinking through so far:Standard due diligence: +Phase 1 and 2 environmental, city plans/zoning, health department approvals for bringing the restaurant back online.Talking to the Army Corps of Engineers and the local harbormaster about dredging (not something I’d do immediately but want to know long-term outlook) and figure out generic cost for budgeting purposes. 

@Andrew Foster some decent advice here, but also some feedback from those who really don't have enough info to support their perspective.Many DIY investors price repairs on materials only and forget about labor as they do their own work.We're a PMC in Metro Detroit, but here's how our process would work:1) MoveOut Video & Pics used to create Scope Of Work (SOW)2) SOW broken down into Priority Categories:- Health & Safety- Government Required (municipality/S8 inspection requirements)- Property Preservation- Marketing Impact / Tenant Retention- Miscellaneous3) Bids obtained if we feel work will exceed Owner Approval Threshold4) Bid sent & discussed with owner to, "redline to their budget"5) Work begins once owner approves & funds6) Completion video/pics providedOf course, while this is going on our Marketing Dept would be doing a rental analysis & ad, and discussing with owner.

Their lease ends in June, but I don’t want to wait that long if this continues to impact my family’s health.

We don’t just process rent—we create connection.This month, that connection turned into something remarkable:We featured a long-time tenant in our first Tenant of the Month newsletter.She’s been resilient through serious health challenges—always communicative, always accountable.One of our owners, moved by her story, stepped in to cover her rent as a gift—on her birthday.This is the Ripple Effect of Kindness in action: strong tenant relationships create stable properties, happy neighbors, and owners proud of their investments.Building wealth isn’t only about numbers on a spreadsheet.

People buying need to keep in mind the target audience a lot of young nurses in health care are not going to want to stay in the highest crime rate area of the city so pick carefully for the group you are targeting.

I am guessing you mean what happens if the sales price of your house is not enough to cover taxes owed.