Is it safe to assume you are thinking of buying a home?
If so, it is recommend that if you don't already have a buyer agent to help you, please consider a consultation with an agent to learn this answer and learn what else you don't even know what to ask.
Buyer a 3 quarter million home should be conducted as you would any other financial decision. Who is going to be your skilled advisor on value and risk management? Would walk into a house and hand the person $750,000 without knowing them? Basically, that is what buyers who go into open houses are doing.
Consult, interview, and hire a professional to help you.