Unfortunately, of everything that you have pointed out, this would be the one I would suggest selling. 

The house has been on the market for 26 days when we made an offer. 

Recently, my mother has indicated her wish to sell the family property where I grew up in Isabela, Puerto Rico.

Not if you buy the worst lot with the slowest selling model.

Quote from @Devin James: Gross Margin is an important calculation for developers/builders.Gross Margin = Gross Profit / RevenueWe shoot for a 20% gross margin on our New Construction HomesReal #’s:Home Sales Price: $374KClosing Cost: $18,700Cost of Construction: $258KLand Cost: $30KGross Profit = $67K$67K/$374K = 17.9% Gross MarginCame slightly short of our goal of 20%Homes Values and Build Costs are constantly fluctuatingI wish we had a crystal ball build larger homes. average new build in our market is 2200 square feet, 4 beds, 3 baths, 2 car garage and sells for 515k. construction costs lower if design is good and find the median or average home sale price and push that up. my guess is you built too small. 347k is cheap. we target 429-479k price range in columbus ohio for single family homes and also only purchase close to urban core where premiums are 20% higher and we build smaller like 1500 sq ft where price per square foot goes up. 

We ended up not moving there and decided to sell it.

We had a plan to build a large real estate portfolio and then sell it in five years and divide the money.

This will show you that people have options to go out and pick another house over your place. 

If not, you’ll need to resolve these liens, which could complicate the investment.Current Occupants: The family living in the property could be protected under Massachusetts’ tenant and housing laws.

You NEVER want to put yourself in situation where you feel you have to sell.