If you still want to rent out your other bedroom you can have a tenant in the opposite side AND a roommate which would give you two income streams.

- Highly recommend REQUIRING tenants to get Renters Insurance and adding you, as the landlord, as additionally insured.

But yes income tax is top 5 in country and there is sale tax. 

Quote from @Kevin Robert Highgate: The ability to invest in property and replace your W2 income quickly is tough.

Correct - Track all your income and expenses.The bookkeeping will determine whether you are profitable or not.it will also be good to compare from year to year your income / expenses to see what expenses you can potentially try to limit.I.E.

However, you can get loans that are based on the performance of the rental and not your personal income and debt.

Well, apart from “if you give me $3000.”Luckily this is a co-living model through PadSplit so I have some income coming in.

Additionally, do you have any other ideas or strategies that might help achieve his goals without incurring a tax liability?

In addition cash flow is taxed annually.  

There are BLOC's Business Lines of Credit which will allow collateralization of residential income properties.