You don’t necessarily have to pay points for the rate, but you’ll very likely be charged an origination fee.

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

You're increasing the need for hot and cold air dramatically and it's doubtful the existing system will be adequate.But, in answer to your original question - yes you will need a permit.

@Tanya Maslach What was the asking the price and what was your original offer?

Property was on market for about 170 daysI originally started the STR plan for tax benefits and plan to do cost segregation as i fall into high income bracket (37%+ 11% state) saving around 50k for 600k property.I have no plan to personally use the property and this is purely investmentI thought i found a great deal because properties in the area are selling for 205-220 per sqft.

. - BUT, it also appears old and probably a symptom of the original house settling.

Originally posted by @Matt R.

If you co-sign, the loan will consider both your incomes but also both credit scores, so her credit could impact the terms or buying power.

If this is financing for a stabilized property rate carries more importance but rate combined with origination fees, pre-payment penalty and term in which you intend on keeping the loan in place are all considerations which together should help in deciding the best financing option.

I'm giving a reverse example, as in I will show how my credit score dropped 59 points in one month because I forgot to do my "trick".The trick is to pay off your entire balance the day of your "statement closing date".