When I got the lease it's full of AS-IS verbiage that was never here before. "....lessor makes no warranties....condition of premises....including without limitation those relating to structure, systems, components of.....air quality....no obligation to construct, remodel, repair or improve.....except as set forth...."

It also came with a video tape of him explaining some very basic components of running your own business (mainly just try to stay organized and keep your promises).

If the loan won't be sold to Freddie/Fannie, I don't believe the AMC component is part of the equation.

The other component will be how much time and resources you have to devote to finding properties??

Cash flow is only one component and many will tell you not the most important wealth in real estate happens by value add  forced appreciation and organic appreciation. 

Compared to an IRA, Solo 401k contributions limits are roughly ten times higherThere is no custodial requirement for the 401kYou don't need the additional expense and administration of an LLC to have checkbook controlThere is a built in-Roth component whereas IRAs are either traditional or Roth, not bothA spouse can also participate in the same Solo 401k planThe Solo 401k has additional tax benefits over an IRA when investing into real estate using leverageThe penalties for prohibited transactions are less severe, though it's best not to utilize this benefit :)

With FHA 203k, every little things is going to be heavily scrutinized by underwriting (and the renovation component approximately doubles the amount of paperwork required) as these are high-risk loans.If it is NOT in financeable condition, you're stuck with hard money, 203k, FNMA HomeStyle reno, or cash, but not a vanilla mortgage.

You didn't say how much of a loan you are talking about refi'ing into with your primary, but that is a key component.

People often miss the geo-targeting component and have ads running all over the country, when their business is actually hyper-local in focus.You can set it so your ads only show in certain zip codes, or inside of certain polygons or radii drawn on the map.

I realize the new rules say you have to keep PMI for the line of the loan, but since I don't know when you originally purchased, I can't help you decide.You also need to remember the time component of money.