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For example, if you are looking to connect with other members near you, want to learn from people in a specific area you’d like to invest in, or have a desire to find people interested in certain topics, you could use the search feature here: https://www.biggerpockets.com/search/users

It's not hard to become a master at all three, but it's suicide to not at least have a rough idea of what works and doesn't, so you can put all homes you look at in either the "it's a deal" box or the "it's not a deal" box.If you really want to invest in mobile homes you need to 1) read up everything you can find on the topic 2) become a frequent user of bestplaces.net and other internet sites for market data and 3) familiarize yourself with what homes are going for so that you can guess from a photo of what a good price would be.Can you accomplish this?

Then I’ll see what rents they are commanding.

Some of them I have had awhile and now am able to command higher rents than when they were purchased. 

I have a lot of market knowledge here because of my sales history with other clients so we didn't have to use real estate agents in a traditional way and I handled all of the paperwork.

Adding/removing users is tricky.

@William GravesBefore walking a house, I estimate using rough $/sqft from previous experience.If that gets me near a purchase price that I think can be negotiated, then I'll go visit the property.Generally when I first walk through the property I estimate by taking notes on this spreadsheet:https://www.biggerpockets.com/files/user/kubaf/fil...While I'm there I am also using my smartphone to record the entire walkthrough, because I always refer to that video later during itemization.Then I go back and rerun my numbers.If the numbers are still in the ballpark I'll make the offer.If the offer is accepted, at that point as part of the property due diligence I will then spend the time to itemize the rehab costs and solicit bids based on the itemized scope of work.

I use Propertyware and find it much better than Appfolio but every user is different.