I would start with youtube or find a friend whos pretty decent with excel.......then go from there.

Manufactured Housing Dealer licenseEach state is different but being that California is California and is know as one of the most heavily restricted states not to mention so left wing tenant friendly states, it wouldn't surprise me in the least if there is all kinds of regulation against what your trying to do.

Please click on the links, give them a read, and share your thoughts in the comments.First is a post that I feel will help not get overwhelmed with the amount of info that is here on BP:https://www.biggerpockets.com/blogs/5868/52761-the-simple-guide-to-getting-started-on-bpThe second is a post that will help get you focused with your real estate investing goals:https://www.biggerpockets.com/blogs/5868/52743-im-new-to-bp-any-advice-would-be-appriciatedThe last one is a post that will help you choose an “investor friendly” real estate agent.

Do a couple deals with your friends (who sound like they're ready to gouge you) and then get out of your comfort zone and do it yourself!

Please click on the links, give them a read, and share your thoughts in the comments.First is a post that I feel will help not get overwhelmed with the amount of info that is here on BP:https://www.biggerpockets.com/blogs/5868/52761-the-simple-guide-to-getting-started-on-bpThe second is a post that will help get you focused with your real estate investing goals:https://www.biggerpockets.com/blogs/5868/52743-im-new-to-bp-any-advice-would-be-appriciatedThe last one is a post that will help you choose an “investor friendly” real estate agent.

Their website isn't user-friendly and I've found the quality of their leads to be sub-par.

Had a couple attempts where I made it far but frankly the market here has been so competitive it has led me to seek my fortune elsewhere, specifically in Chicago, where I have a good friend doing real estate. 

In short, you look at recent sales, the # beds, baths, size of the property, condition, and key features (lot size, attached garage vs no garage, etc.) and adjust the price of the comps up/down to tailor to the subject property.- BPO - Broker's price opinion.

Me and a friend looking to invest in a duplex.

Spreadsheet template:TOP HALF OF PAGE:Addresses of comps - price - date - bed/bath - special feature(s) of house - conditionProperties listed here with dataMedian / Mean / Lowest / Highest chartCommentaryBOTTOM HALF OF PAGE:Left side, improvements since purchase bullet points.Right side, details about how/why you got the property for less than fair market value, again bullet points.