Max LTV with FHA drops from 96.5% to 80% or 75% (can't recall, but doesn't matter because either way 3.5% down is out the window) if you try adding a non-occupant co-borrower on a 2-4 unit property. 

When the money is out of the TSP I am assuming it is no longer acquiring the gains/losses from sitting in its fund.

In general, a higher LTV comes with a higher interest rate.  

To your question about funds, it entirely depends on the deal.

Blanket Loan do exist, LTV's go up to 75% with minimum property values around 50K and minimum loan amount of 100K

My wife and I own a few other business, one of which is an LLC that has a lot of available funds.

I eventually went with Sun Federal because they would lend up to 95% LTV.

View report*This link comes directly from our calculators, based on information input by the member who posted.Looking at funding this deal, duplex flip.

We're currently working on some minor TLC on our personal residence and are going to look into using a HELOC to fund our first flip.

Like Michaela said...with a cash out refi you should be able to get 75% LTV...so $97,500. $975 should be enough to cover the new mortgage payment plus some.