Selling would likely trigger capital gains taxes (unless you lived in the property for two out of the last five years or use a 1031 exchange).

Lastly, make sure to rework your numbers on the conservative side. 

The last time I checked, they said Airbnb decide this category and I cannot request it. good luck it will be incredible boost. 

I have been buying and dealing with Real Estate for about the last 30 years.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases: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.

But now things are working more smoothly and after finalizing the accounting for last year, I have a better idea as to what kind of profit to expect.  

@Christopher MorrisTo add to what @James Hamling said, it also depends how much you need every last $ of income, how much more money you can make doing something else (W-2), or how much you value your time. 

Then connect with some hard money lenders (you can find some here on BP as well as some who are typing this right now) and connect with them to understand their product type, what they like to lend on and requirements.Hard money broker is all numbers game of making relationships and helping those that are looking for financing, it starts out slow but if you get with a few good borrowers and lenders it can be pretty decent money to be made.As an example we paid six figures last year to HM brokers. 

The current owner listed last years income as $51,000, but currently has rents at (for the five separate units): $650, $750, $800, $825, $1125 (the math doesn't totally add up so maybe he changed a rent payment at some point). 

The last post on this topic I see is from about seven years ago... so figured I would start fresh.