The note is the contract that provides the details regarding consideration and repayments.

House is worth considerably more than that.Goal would be to Secure the secondary to have the ability to pay off the primary. 

Things, like how much money to invest, how long you'd like to invest it, do you need it to be relatively liquid, is it self directed, how much you make a year, your age, are you W2 or self-employed or retired, what other assets you have, there are tax considerations, and so on.Ask a local friend or a local tax preparer if they know of any qualified and honest financial advisors.

That would buy you time to work with the heir(s) and an attorney on the probate process. 

If they don't, you could still pursue the split through a variance but you'll want some informed opinions on the probability for success from the town and from local attorneys that have presented zoning variances before the town's board of appeals.After you do this initial research, I would call the town and speak with the zoning board or planning board and run through what you want to do, what your take is on how it applies to the zoning requirements and get their initial reaction on how achievable it is and any considerations you might not have taken into account. 

I will take these into consideration and evalutate which path I can pursue.

Another consideration is the deterioration of the commercial office space market, as the dust settles and investors reassess portfolios, it is possible that the interest and demand for residential income producing properties further increases.According to the association of Realtors a 4-7 month supply viewed as a healthy balance between supply and demand.

Manufactured IRC mod home sand are just like a stick built home. 

Few landlords will sell profitable, cash-flowing units unless they are seriously hard up for cash (and the property has appreciated considerably) or the properties are about to need a boatload of repairs and capital expenditures.

What are some things I should take into consideration from a marketing perspective?