She is using a conventional loan and her mortgage will be $1,600ish so she is getting a solid return.

Could I fund the purchase using a bridge loan with the assumption to sell my existing home ($1.5M)? 

Great tools that get updated regularly.I am on the lending side of things and would be happy to hop on a call with you anytime to discuss financial strategies and help answer any questions you may have about nearly any loan product available to help you on your journey, even if they are not products my capital partners offer.We are all here to help you learn and grow.

Since the interest rate is already high, adding to it won’t drastically change your overall costs and will free up the liquidity you need for the new investment without affecting the low-rate financing on your multifamily property.Using the hard money loan to close on the new property could work well, especially if the property generates the $6,000/month you expect.

Nobody is going to come for your $200k duplex with a loan - it is so much easier to target your insurance.First of all, don't give people a reason to sue you!

I am trying to manage the asset and the property managers.Here is the basic functionality I'm looking for: Property View: Customizable view that allows me to select a given property and view, update, and save information including the obvious facts, plus ownership %'s, reserves to be held each month, property tax/insurance info, purchase and loan info.

So, because of this a lot of the "affordable" condos you will see in DFW have financial issues and you cannot get a mortgage loan on them, and have to pay cash. or, maybe get some sort of non conventional financing that is much more expensive requiring 25%+ down. 

I am a broker looking for a lender to do this type of loan.

your loan officer is nuts.you can have multiple lots/parcels on one deed..

For example, an agent would collect a reduced commission, flat transaction fee, or no commission if the buyer sources an off-market deal directly.In your case, if you'd like to compensate your agent, you can include it in the loan.