I will discuss in detail with you whether you should actually get a pre approval. Many factors come to play in this decision including interest rates and costs involved in getting a mortgage pre approval. I would be happy to provide you with a referral to a local loan officer for either a pre qualification or a pre approval. Once you have decided which homes you want to view, an appointment will be set with the listing company and the seller. Some sellers require 24-hour notice for showings.
Some sellers issue keys or lock boxes.
Ultimately, all appointments are at the seller's option. Naturally, any home you want to go through a second time will also require an appointment. There are many types of home inspections depending on what type of mortgage you are applying for. City inspections, FHA or bank inspections are not intended or completed on behalf of the buyer. In other words, these inspectors cannot be held liable for anything they miss.