great answers above.I'd add a few resources:→ accredited investors qualifications: https://www.sec.gov/resources-small-businesses/capital-raisi...→ many fund managers will help you self-certify (I'm happy to help)I have more information on my website here:https://www.oakandvinecapital.com/accreditedBecoming accredited unlocks more opportunities, and you can learn about new opportunities without having a relationship with a sponsor or fund manager (506c offerings)If you are sophisticated, you can also take advantage of investing in alternative assets, you just need to have a pre-existing relationship with a sponsor or fund manager.Happy to help more!

@J Scott I have The Book on Estimating  Rehab Costs ( important read); but I'm not sure where the digital resources are and I looked through the book; but I'm not seeing any reference.I see I purchased it off Amazon, if that is the difference. 

Resources like books, forums, and investment meetings can provide further guidance.

Create a team of skilled agents, lenders, attorneys, and contractors, network with local communities, and evaluate transactions with resources such as Zillow and Redfin.

Hi Madheshwaran, Welcome to the community-There are a lot of good resources here on bigger pockets to learn and grow. 

Allocate 10% for vacancy and maintenance.  

One great resource is RV Park University, by Frank Rolfe and Dave Jenks.

You are a great resource of knowledge for anyone looking to invest in tax liens in Alabama.  

So consider the costs to convert or add space on the property after a purchase, and the income that would be added from the addition of the space.Since the property purchase includes a high price for land already, the rentable space that you add to the property can have a net positive impact on your overall cash flow, allowing you the potential on the right property to reach a net positive cash flow, and also the potential to build a portfolio of properties over time using the strategy.Transparency: I am Greg from BuildCali dot com, and would be happy to help you with any project you have questions about and to share some great free online resources for further research.

Partner Driven financed the Hiawatha Way deal by utilizing internal capital resources.