If they regularly go for $90K-$95K (presumably "retail") why not put connect the realtor that sold those and ask if they have anyone willing to pay $80K?

I regularly attend the inland Empire real estate investment club it's on the 3 rd Wednesday of every month.  

there are a lot of deals going on in our market..you should check regularly to keep update. the prices have went up fast but we are starting to see a slow down and buyers and not that aggressive like they used to be :)Bonyton Beach,Delray,Boca Deerfield and some parts of pompano should work well for Vacation Rental..Good luck!!

Regular people don't get what we do.

I wonder whether it is possible for me to buy a mobile home with cheap price, install that and sell it as a regular house ($110-$150K).

Value is a bit more subjective, but think about selling two identical properties, one with a crap roof that and one with a new roof.  

Your website should to be just one part of an overall online marketing strategy including regular newsletters, blogs, webcasts, live events, etc. that will keep your rankings high on Google, and give you a way to stay in front of the investors you meet, all to help you build a database of well-qualified investors who are ready, willing, and able to invest when you find your next deal. 

I never really considered real estate as an option until one of my peers in class told me he started investing in real estate when he was 18, absolutely loves it and does not have to work a regular job to pay for his classes.

I seem to have a quasi-regular need for repairs on properties and can't seem to find someone reliable. 

Track all of the income and expenses in report form that you can view regularly with a couple of others that can or has built up trust in and understand your goals to help you possibly reduce your expenses or increase your income on any property that you own.Between personal and business issues that I could give y'all I am going to stop now and tell you more later if given the chance.