That's a $200,000 gain, and if you are an owner-occupant and set things up right with your accountant, you might be able to sell this personal residence and keep all of the capital gains tax-free. 

I recommend adding a clause to all your leases that prohibits people from running ANY business from their residence.

Of course, there are still risks with both of those, but can be a 1-3 days for funds, no hassle solution.

@Colby MulryBefore we can have any solution, we need to define the problem. 

What the best "bang for the buck" solution is.

Often times you can find out that the person on tax records has a different address from the residence.

There are days I have to work late, stay all day and the various Navy related duties but like I mentioned earlier would like experience/exposure while helping out/not being a burden.My wife and I have two rental properties and our primary residence so I'm not completely new to the world of real estate but when it comes to investing I'd consider myself a newbie.

Long term there is no other solution than just paying the taxes, if you have to take out a loan to do so that may be an undesirable but necessary option.

One solution that comes to mind is to refinance into an IRA.

@Michael Wagner had really great points, I just broke out the costs for his solution.