What material do you experienced investors/landlords suggest reading up on for someone who's never been a landlord or owned property before?

But none of those Lenders said to me: "We'll lend you $100k, but because we're not checking your credentials, and we're giving you educational materials, and a small list of people who may or may not be interested in buying something off you one day, we'll put on our books that we loaned you $140k, and start charging you a higher-than-normal interest on the whole amount; and don't even think about not paying it all back, because we'll foreclose on whatever you bought with that $100k so quick it'll make your eyes water, and still chase you for the rest".

I used some advanced materials and techniques that I’ve never seen on any other flip houses.

The common materials used in home construction are floor tile, roofing and siding.

I asked him to do things that didnt require him to go into any apartments before 9 am.. he did not comply.. then when we were getting ready to flip an apartment I sat down with him and asked him to make a list of materials with me he thought he would need so I would have all the materials on site when the apartment was vacant. we sat there, made a list and I said " ok great, how long do you think it will take to paint, put in new counters, and do any repairs needed?"  

I am not sure what the material is on the roof but I know there was no prior issue in the basketball court.

An example may be that you may have a credit card that has a 20k limit, and for one month, you have to use 19k of that to do buy some rehab materials.

I've demoed Realestateexpress.com, but I found that the material was very convoluted, and I couldn't distinguish the important parts.

Ok, now that you have taken your initial step, below are some quick links to get engaged.http://www.biggerpockets.com/starthere http://www.biggerpockets.com/meet Setting up Keyword Alerts How to Use @Mentions on BiggerPocketshttps://www.udemy.com/biggerpockets-real-estate-investing-course/ (video with 64 lectures and approx 6hrs of material) https://www.biggerpockets.com/real-estate-investing (Ultimate beginner's guide to REI) REI can be very daunting, but, before you go searching for that 1st buy, please take a few minutes to bone up on the tips in link below.https://www.biggerpockets.com/renewsblog/2014/12/19/real-estate-investing-success-smart-tips/ However, you mentioned an interest in wholesaling and I added the link below with a guide that will help you understand the basics of this niche before inking your first deal.http://www.biggerpockets.com/renewsblog/2015/01/31/ultimate-beginners-guide-real-estate-wholesaling-2/?

However, this site thrives on interactions and as such we encourage two way exchanges and look forward to educational and thought provoking ideas relevant to REI.http://www.biggerpockets.com/starthere http://www.biggerpockets.com/meet Setting up Keyword Alerts How to Use @Mentions on BiggerPocketshttps://www.udemy.com/biggerpockets-real-estate-investing-course/ (video with 64 lectures and approx 6hrs of material)  https://www.biggerpockets.com/real-estate-investing (Ultimate beginner's guide to REI)Before your 1st purchase, please ensure you visit the below link for some tips. https://www.biggerpockets.com/renewsblog/2014/12/19/real-estate-investing-success-smart-tips/REI books suggested by BPershttp://www.biggerpockets.com/renewsblog/2013/04/14/best-real-estate-books/?