Moving to TX-Dallas/Frisco, should I buy new construction?

[Iris Hou]

Planning to move to the Dallas/Frisco area in a year or so and would like to buy a house that we plan to stay for long term. We own a house in CA and after selling, we would have enough cash and not need to finance if we don't go crazy (800k house should work). We don't have commute needs, and would just need good schools and places to take our baby to. I do really care about the location and investment value though of the house I'm gonna buy. I heard that the Frisco market is crazy and that kinda scared me from buying 2nd hand house. Would buying new construction a better choice? I was told that we need to wait 14-18 months for the new house to be built. I'm worried that after a year the market would be so different. What if I'm not able to sell my current house/or sell at a really low price before the house in the new place is complete? If I sell my current house now I'll have 14-18 month minimum that I need to rent, losing at least 40k to rent than capitalize it into property, so I'd prefer not to do that. Side topic, any good RE agent and lawyer in that area that you know? Your suggestion (related or unrelated to my questions) is really appreciated!