"Every Landlord's Legal Guide" by NOLO is a good book for this purpose.

Start by reading the Ultimate Real Estate Investing Guide: https://www.biggerpockets.com/guides/ultimate-real-estate-investing-guide/introduction2.

At this level of knowledge and experience you need to be a co-agent and learning the ropes of things under an experienced person who can guide things. 

I can take a look for you with no obligation and help guide you what to do next.

As a lender who specializes in financing for real estate investors, I understand the unique needs of the BRRRR strategy and can offer tailored solutions to fit your goals.Here’s how I can support you:Flexible Financing Options: Various loan products designed specifically for investors like you, allowing for quick access to funds for purchases and renovations without the stringent requirements of traditional lenders.Experience with BRRRR: Having worked with many investors using the BRRRR method, I can guide you through the financing process, ensuring you understand the best strategies for maximizing your returns.Quick Turnaround: With a streamlined application process and quick approvals, you can move fast when you find the right property.Personalized Support: I’m committed to building strong relationships with my clients.

Starting my real estate investment journey and using experience as a budding commercial/residential agent to guide my journey as well as the journey of others I interact with.

The lessons I’ve learned will undoubtedly guide my future investments - this journey is continuing! 

I like the Unofficial Guide to Real Estate Investing.

Learn which version is right for you in this detailed QuickBooks Online plans comparison guide:- QuickBooks Online Simple Start: Have employees and issue invoices regularly- QuickBooks Online Essentials: Assign hours worked to customers, track bills due, and provide access for up to three users- QuickBooks Online Plus: Best for retailers, wholesalers, contractors, and other small businesses requiring property cost, inventory tracking, budgeting, and access for up to five users- QuickBooks Online Advanced: Best for small and midsize businesses (SMBs) seeking fixed asset accounting, advanced reporting, custom user permissions, a dedicated support manager, and access for up to 25 users You can use it as a property management software to track lease dates, record maintenance request and moreNothing is confusing to use if you learn it.

Start by reading the Ultimate Real Estate Investing Guide: https://www.biggerpockets.com/guides/ultimate-real-estate-investing-guide/introduction2.