you should be using a buyers agent, and having him present the offer in person
Check the zonning and go talk to the building department.
It all depends....average days on the market vary from town to town, but for the most part it takes over 6 months to sell a property. Comparables homes are used by appraisseers but they can go back more than 6 months,
put the address and it will appear on the map
In todays market the best way to know value is by having local realtors give you an idea of value. Even a educated guess might not be that realistic
It all depends on what property you are trying to buy. If the property you are looking at is competitively priced, you might have a challenge if there are offer with high traditional financing and large down payments.
get a proffesional opinion. Zillow is not accurate
Speak to a mortgage broker....it can be done.
an agent can run comps for you..
Sellers usually pay for the buyers agent....why would you not use representation. A seasoned agent that has sold over 50 homes can negotiate better than you...