Looking to make first purchase and have questions

[Aaron Meadows]

Single adult age 28 living in Nevada looking to make my first purchase this year. Looking for advice and have some questions. 1- good month to purchase? Thinking October September. 2- should have near 770-800 credit and heard of friends putting down below 20% with insurance which falls off after they have down 20% is that kind of loan common and do able for a single adult 3- I plan to rent rooms out, is this something that helps mortgages or hurts? Or not something to tell them? 4- wanting to see the size of mortgage I can get approved for even though I am not looking to purchase until later in the year, could this hurt my credit running a check? 5- does job play a factor? Currently bussing tables in fine dining looking to move to bartender this year. Only debt currently is a car payment about 2 years left on a 10k loan. 215$ monthly payments. 6- thought of getting a government job part time to apply for a loan with that, then potentially loosing the job after I begin payments. Is this do able or even worth the hassle ? I am sure I have other questions I can't think of at the moment, will update when they come to mind.