It depends on the layout of the units and the number of units.

#1031exchanges #replacementproperties #capitalgains #taxes #realestateinvesting

If it is on one tax lot, it would be recorded as one property on your schedule E.

Depending on your market buying a duplex might be feasible but many down payment assistance programs do not offer credit for multi-families. 

Depending on your state laws you may have a case just based on the 54 day timeframe if you have proof of that.

Will it impact the rental that depends on the area.

Depending on your state, you may be able to enjoy a step up in basis upon the death of a spouse.Non-Community Property StatesIn every state but the community property states, spouses are treated as joint tenants with rights of survivorship (JTROS).

But realize that expenses also rise... property taxes, property insurance, etc will offset higher rents.The shortest answer I can give you (in my opinion) is that it isn't a great time to be jumping in for most newbie investors.  

What is a good and or acceptable amount of money to have saved up before buying your first rental property I'm aware this can vary depending on the state/area but is there a rule of thumbThank you ahead of time 

I see rentals go from 150 - 450 / night depending on a site and condition of a place and season.