PRACTICALLY, the best option isn't as clear.  

I have one house where it's actually more practical to do the laundry on-site (no good local access to send out the laundry) but even then multiple sets of linens mean the house can be done with everything while waiting for the last load to dry.  

You can rent out the other side, practically paying no mortgage & have your positive cash flow.

Plus...escape velocity...Episode 113 – Jay Papasan - Very practical slow and steady adviceEpisode 221 - Tim Shiner - his concept of equity build up and "shearing the sheep" shows some of the flexibility of real estate vs a 401k Last but not least, I also recommend all the tax advice given by my fellow CPAs on the BP Podcast.

I don't think this is a good practice because you actually don't know these numbers.

What are best practices?

I know they are trying to update the law with the choice act because the Dodd-Frank has had unintended consequences that for some reason the Consumer Finance Protection Bureau wont rectify...Former Congressman Barney Frank, who co-sponsored the legislation, said he was “regretful to realize” its negative impact not long after Dodd-Frank became the law of the land.In a 2011 letter to a constituent, Frank wrote:“I do not think it is necessary to include manufactured housing as part of our effort to prevent abusive mortgage practices, and I am now working with my staff to see if we can find a way to make a change that would deal with the problem you correctly point out… “

having spent a decade in the timber business in Oregon I call it Oregon porch time.. these are not inner city dwellers these are folks that you need to sit with and talk  have coffee and build reporte'if the homes are nice and clean and saleable probably tough to buy under market unless your good at looking someone straight in the face and telling them their 300k home is only worth 200k.. that is a moral issue.Also be aware that you CANNOT legally sell a home you are not in title to in Oregon.. its selling real estate with out license and don't listen to all the people from all over the country that wholesale.. many states its an accepted practice in Oregon it is not.Also if your flipping homes IE coming into title you also need a developers license in Oregon  talk to @Karen Margrave she just got an education on this.. the state is cracking down on flippers.. its a 5k fine.. usually 1k first time. 

Also we are look for Landlord & Tenant attorney whom practice and familiar Hudson County.Thank you very much in advance!

Disclaimer: While I’m an attorney licensed to practice in PA, I’m not your attorney.