Plenty of money to invest but no personal income, am I crazy to think I can get a mortgage?

[Dusty Ny]

I've been reading these forums for a few weeks now and I'm starting to get a feel for things but I'm very new to all this so please forgive my ignorance.

Hopefully someone will be kind enough to point me in the right direction. I have a few hundred thousand dollars in various stock accounts, mutual funds, bonds, etc. I'd like to get some of this money out and invest it in to a multiunit property (seems like there are great deals out there) but I'm nervous that I wont be able to find a mortgage because I don't meet the lending standards of most banks. I'm looking in to buying in cash but that limits what I can buy and since I live in NYC the buy in is very high unless I go 1 1/2 - 2 hours drive away from home.

For the past 2 & 1/2 years I've been living off my cash reserves (my expenses are under 2k monthly) so I don't have any income to show. From what I gather "Stated Income" based mortgages are history (or nearly impossible to find).. My fiance is willing to co-sign a loan but she doesn't make a ton of money so that limits us as well.

I've been talking to banks but all the big ones pretty much laugh in my face, except Wells Fargo but I've heard they run you around (and the guy has been really flaky). I'm going to start talking to my local smaller banks but I don't have any relationships with them.

Am I being unrealistic in looking for a mortgage or should I concentrate on a cash purchase instead? I don't mind doing the work but I don't want to waste my time either.

Any advice would be very much appreciated.

Thanks