Tell your tenant that she can do research on the web, as I did, and find help.

Web site should give you some insight too.

I’m wondering how it worked with dealing with the Housing authority.

An overview can be found here.The CMHC web-site also has a mortgage calculator which will accommodate high-ratio, insured mortgages.My recommendation is to learn the underlaying principals, be able to perform the calculations manually and develop your own spreadsheet.  

A housing voucher can only be used to submit a request to live in a property that is located within the geographic authority of the housing office who issued the voucher.  

They are not becoming the authority in their market.. they are just another face among the thousands of other realtors/investors.The absolutely best advice is to start building your network (other agents, title companies, management companies, investors, mortgage brokers etc...).

I am not an expert by any means,  but I do have rentals in south seattle and burien; near renton and I have looked into this a couple times when I had sec8 recipients inquiring about vacancies.The way that the housing authorities require you to verify income is that you can only verify income against the tenant's portion of the overall housing payment.  

@Owen DashnerChris Voss author of Never Split the Difference is a better negotiation teacher than Grant Cardone.

Most people would find that excessive, but it is very inexpensive.If you are used to just living in a bedroom, my advice is either find another room to rent or move into a property and rent out your extra bedrooms.As I have gotten older with a family, I value a nice home in a good neighborhood more than I did when I was younger.

It is a daily challenge to navigate the local, county, state and federal governments; local Code Enforcement, Housing Authorities, Department of Real Estate, Franchise Tax Board, Secretary of State, IRS, Dept. of Fair Housing & Employment, HUD...to name a few.