@Tamar HermesPlease see the following regarding Considerations re Investing in Real Estate & Considerations re Choosing a Solo 401k provider:General Considerations Re Investing Retirement Funds in Real Estate:1.

I suppose I could do that if rates under my name were considerably less.

There will always be a learning curve to overcome, but a mentor shortens that time considerably. 

Time is a consideration for both you or your contractor/installation team.

As long as cash continues to flow into assets, prices will rise over time. 

Now of course don't waste someone's time offering $100 on a 100 unit apartment complex in a prime location and in excellent condition, but don't worry about starting the discussion at 20-40% below what you hope to eventually buy for.Price isn't the only consideration either. 

You also want to understand state tax implications that may rise.

It’s cyclical in nature and they have been low for a while so I would not be surprised to see them rise soon.

I just want to know how to analyze like how to find out if the demand is high, how do you know if homes are selling fast, how to find out if demand for property in any area rising or falling or how to find out if a neighbourhood is hot or not, I've discussed with a lot of people and they recommend me to use city-data.com which is an excellent website to know about the market but even in that website I don't know what to look for like if the population is 20000 in a city is it good or not or what it should be or what should I type in google to know about a specific market or place?

I will take it into consideration.