If a house has an established rental unit, then any appraisal must take into account the net (after operating expenses) discounted cash flow of the rental stream. I'm not sure what that might be in this case. Assuming some reliable real estate agent or appraiser has quoted you $146K, it's probably fairly accurate. That means, of course, after selling expenses and commissions, you have virtually no equity in the home. Not good from a lender's point of view.
As well, in a boom market, the property has only gone up marginally by $16K in 5 years. In Toronto, the same home would have gone up by 30 or 35% - assuming it was a single detached home since, generally, most of the value comes from the lot.
Coupled with the fact that you have $25K of unsecured debt at, I'm sure, a substantially higher interest rate, it means you have significantly less than zero financial net worth. Regrettably, the higher the risk, the higher the interest demanded as compensation. If any lender concludes that your net worth is around -$25K, I really don't know if anyone's going to bite unless you can increase your income somehow.