Keep in mind that some, such as Internal Rate of Return (IRR), require advanced computer calculation.https://www.biggerpockets.com/blogs/8814/73755-18-essential-metrics-to-a-complete-real-estate-investment-analysisAs far as finding multifamily properties, you'd find them the same way you find a SFR, and there are many, many ways to source them:By building relationships and letting everyone know you're looking for houses and apartments:https://www.biggerpockets.com/blogs/8814/72664-35-relationships-to-help-you-find-more-houses-to-flip-or-wholesaleLooking for them on the internet:https://www.biggerpockets.com/blogs/8814/72016-55-resources-to-find-real-estate-deals-onlineand, of course, locating them offline:https://www.biggerpockets.com/blogs/8814/71506-27-ways-to-find-off-market-and-wholesale-real-estate-deals-offlineBest of luck!

https://www.buildium.com/blog/using-smartphones-fo...

@Tamara JeffersonWelcome to BP, and congratulations on making the decision to invest in your future via real estate.I have written a few blog posts that may help you get started here on BP, and with your investing.

Here's a link to some suggestions for the approach that can be effective.https://www.biggerpockets.com/blogs/10944/74462-you-want-to-buy-their-home-but-how-do-you-get-the-attention-of-senio 

I have been a personal finance geek for a long time and found my way to biggerpockets.com through other personal finance blogs and podcasts.

.#4 good call.Immerse yourself in real estate knowledge...books, podcasts, forums, blogs...and analyze many deals. 

Find comps that: have sold within the previous 3-6 months;are within the neighborhood geographic boundaries;have similar features;are approximately the same square footageRemember that the condition of the comps needs to reflect what the potential subject property will look like after rehab.I wrote a biggerpockets blog post on how to find comps and calculate ARV which may be helpful:https://www.biggerpockets.com/blogs/8814/68395-how-to-find-real-estate-comps-and-calculate-after-repair-valueReach out if I can help with anything.

At 42, you have a comfortable timeline of 15-20 years to take advantage of significant capital appreciation right here in the Southern California Market while maintaining positive cash flow as you build your portfolio.You may want to reference the blog on my profile page that details a first hand account of getting started in multi-family and where that can lead. 

Hi, I’m new to rental property investing and I have read many books, blogs, and listened to countless podcast.

Here is a list of lenders offering such financing for retirement accounts: https://www.biggerpockets.com/blogs/2810/50272-lis...If you use leverage to purchase a property in your IRA there will be UBIT impact, but it would not be huge as to discourage you from going this route.