I’m selling a house this month that I owe nothing on and I would like to use that money to build a new house on some land that I own.

The majority of properties unless really distressed sell at or close to market value.

They will usually sell them, even though not listed. 

But the plan is to sell it so I want to keep on working towards that. 

I get a Landlord policy and pay a higher rate while they are vacant.If you have major structural work to do then get builders risk insurance, otherwise just hire licensed and insured workers for cosmetic work.Without a Quiet Title you may not be able to refinance or sell the property to a buyer using financing.

4-5% is typical when buying and 9-10% is typical when selling.  

Save this post, because if you think you can find and manage Class C tenants from OOS, there's a VERY high chance you will end up being penny-wise, but dollar-foolish.Hopefully, you'll be able to recover from your mistakes & losses and won't have to sell at a loss.

This was one of the selling points for us.

If good it will sell in a day, Good luck 

We prefer to have tenants on yearly written leases, unless we are looking to sell the property or have other plans and may do extensions of 6 months and one day if tenants are planning to relocate, purchase a home, etc,  and cannot commit to a 12 month lease.