From putting together your various comments, I'm coming from the perspective that you are looking for recommendations on whether or not to sell or rent out a duplex you currently own and live in. Right now you are able to work from home but at some point may need to move to another state due to your job change. There is still a possibility you could work from home indefinitely, and therefore might be able to continue living where you are. Lastly, it sounds like if you do move out of state, you will likely rent for a year until you decide what neighborhood you like best and then buy a property there. If I were in your situation, here is how I would approach it -
Firstly, I would rent out the other half of the duplex ASAP. If you do end up selling down the road, already having a paying tenant in place could be looked at as beneficial from the buyer (instant rent). The lease you put in place with said tenant will transfer over to the new owner and then it will be up to them on how to proceed (renew another lease or not to, simple as that). I wouldn't get too hung up on how you "think" the tenant may feel. The document you both sign is legally binding to the terms you both agreed to.
Doing this will pay for some (maybe all) of your expenses in the near term. When you do decide to move out, consider renting the other half of the duplex as well. Depending on how much you would be able to cash flow would be the deciding factor for me on whether or not to sell. For deals in my market, I look for properties that will Cash Flow a minimum 10% of what we have invested.
Example - 20% down on a $200,000k property plus closing costs (estimated at $4k) is $44k. Lets say our holding and improvement costs before we get tenants to move in is another $6k. That puts our total investment cost at $50k. Now let's say you are able to rent out the property for $2,100/mo with the tenants paying all utilities and yard care, PITI is $1,200/mo., property management is 8% of monthly rent or $168/mo., and maintenance + cap ex is another $210/mo. (I typically estimate this as 10% of rent... but this could vary a lot based on age of the property and how recent upgrades/repairs were made). That puts your total monthly expense at $1,578 which means you cash flow $522/mo. After one year, you will have accumulated $6,264. $6,264/$50,000 gives you a cash flow of 12.53%. This does not even take into account the amount of principal you are paying down on your property or any potential appreciation. You also can claim depreciation for taxes. In this scenario, I would decide to keep the property. Side note - In this example, I neglected to include vacancy. You may want to factor that in, but even if you were to have the property vacant for 2 months of the year, you would still likely be cash flow positive.
Some other things to consider -
1. When you sell, it's typical to pay 6% in commissions to realtors (3% to buyers realtor, 3% to sellers realtor).
2. When you decide to purchase a new residence, if you are strapped for a down payment, you may need to sell. Ideally, you would let the positive cash flow on this property be the down payment on your next one.
3. How much equity do you have in your current property? You could potentially refinance (rates are near all time lows) and pull out cash for a down payment on another property. If you do, make sure the numbers still work for cash flow as your monthly payments will likely go up for PITI on the duplex.
There are many directions you can take this. Hopefully by analyzing the rental potential of your current duplex will give you a better idea of which route may work the best for you! I myself love building cashflow positive properties (basically little money factories). Let me know if you have any questions and I'll do my best to check back in!
A few things that you could provide that would help us analyze your duplex are -
1.Purchase Price of the Duplex.
2.How much do you have invested? Down Payment, Closing Costs, Improvements.
3.What do you still owe in Principal on the Duplex.
4.What is your current monthly PITI? Looks like $3,000 from what you mentioned above.
5.What does the other unit rent for?
6.What would your unit rent for?
7.Are the utilities separated by each unit? If not, how much are they on average per month?
Best of luck!